Ultimate glossary of crypto currency terms, acronyms and abbreviations
Usually, bull markets attract a lot of new investors - although speculators should be the right word here - and as usual, a lot of them are going to be crushed a way or another. First, before putting a single dollar, euro or whatever in the market, you should read a lot to know exactly what you're looking for. Are you here for the tech and/or the cypherpunk ethos ? Great, there's lot of resources out there (my links are cleaned but as always, do your due diligence) :
The Bitcoin Whitepaper, the one and only : bitcoin.org/bitcoin.pdf Since I'm linking to bitcoin.org, friendly reminder to avoid bitcoin.com, owned by a former supporter now con-artist Roger Ver.
Andreas Antonopoulos website : https://aantonop.com Andreas is one of best guys able to educate on bitcoin and its properties, for free, which helps.
Jameson Lopp website : lopp.net Jameson is a member of Bitcoin Core, cypherpunk, also able to educate a lot. His website is full of free resources and other links. You'll have a lot to read.
Hal Finney : he's unfortunately dead but I would advise to read about Hal Finney, the first to receive bitcoin Satoshi. A great cryptographer, the inventor of the first reusable PoW and one of the first bitcoin supporters. You'll be able to find his messages on this old forum Bitcoin Talk, by the way you'll be able to find the first chats about bitcoin on this forum bitcointalk.org
Monero website : getmonero.org Yep, I know it's gonna be controversial to post an altcoin link but personally, I think that Monero (aka XMR) is the only other coin with a big cypherpunk community, decentralized, and able to help newcomers with a great sense of responsibility, since the ethos here is to save privacy.
What Bitcoin Did : of course, Peter is controversial but I love him and I find his former blog and his podcasts very needed because he doesn't oversell himself. Pete knows that he's not a tech guy (like many of us) and just wants to spread the word, I think he does a good job with this.
Now, you've read and you want to put some skin in the game. Several exchanges are acceptable, a lot of aren't, be careful and assume that none really are (know that I won't post any ref links) :
to me, the best, although it's UI is quite old : Kraken €/$/pound/swiss franc on-off ramp
Coinbase and Coinbase Pro Difficult not to mention Coinbase, although I can't stand Brian Armstrong and the way they are doing their best to support scams currently. You should rather use Coinbase Pro if you have to since the fees are much lower.
Binance Binance came later than the previous ones but has managed to take most of the market. Now, you should remember what I said about being careful.
Huobi The biggest chinese exchange and they work closely with chinese official. Again, careful.
Bittrex Once at the top, now somewhere in the limbs.
A lot of new comers came recently like btse, ftx, feel free to try them while always keeping in mind that once your money is on exchanges, it's not yours anymore.
This was for centralized exchanges aka CEX. Talking about custodial, you'll need wallets to store your (bit)coins. Always try to use non-custodial wallets, which means wallets that give you your private keys. This way, if the software goes down, you can always retreive your money. Now, I won't link to all the existing wallets but will advise you to buy hardware wallets (trezor or ledger but there are others) or to create (on off-gap computers) paper wallets you're able to store safely (against all risks, not only robbery but housefire). You also could use your memory with brain wallets but, my gosh, I wouldn't trust myself. For Bitcoin (or even Litecoin), Electrum software can do a good job (but save your keys). AGAIN, DON'T KEEP YOUR SAVINGS ON AN EXCHANGE Now, about trading : it's been repeated and repeated but don't chase pumps and altcoins. Yep, it's probably the fastest way to make money. It's also the fastest to lose it. I won't lie : I made good money during the 2017-bullrun and I took profits but I also forgot to sell some shitcoins thinking it would keep going up, now I'm still holding these bags (although I don't really care). I know that a lot forgot to take profits. Take profits, always take profits, whatever your strategy is. Don't fall for people trying to sell you their bags, for ICOs trying to sell you a product which isn't released yet and obviously, don't fall for people asking for your private key. Also, know that there's two endgames : accumulating bitcoin or fiat. I'm rather in the first team but whatever your strategy is, take profits. (Yes, I know, some will say accumulating ethereum or something else). It's true that a lot of ethereum holders made a lot of money during the last bullrun (ethereum helped me make money too) but I'm really biased in favor of bitcoin (and monero). So, pick your coin but again, do your due diligence. A lot of people here or there will talk about the best tech, the fact that bitcoin is old and slow. I would need another post to go further on this point but know that a lof of air flight systems are old too but reliable. Trustless and reliable is the point here. This is the post from someone who bought bitcoin seven or six years ago, who lost part of them, who spent part of them (but don't regret this at all), who is still learning and I hope it will help others, although it would need a book to be complete.
How To End The Cryptocurrency Exchange "Wild West" Without Crippling Innovation
In case you haven't noticed the consultation paper, staff notice, and report on Quadriga, regulators are now clamping down on Canadian cryptocurrency exchanges. The OSC and other regulatory bodies are still interested in industry feedback. They have not put forward any official regulation yet. Below are some ideas/insights and a proposed framework.
Typical securities frameworks will cost Canadians millions of dollars (ie Sarbanes-Oxley estimated at $5m USD/yr per firm). Implementation costs of this proposal are significantly cheaper.
Canadians can maintain a diverse set of exchanges, multiple viable business models are still fully supported, and innovation is encouraged while keeping Canadians safe.
Many of you have limited time to read the full proposal, so here are the highlights:
Effective standards to prevent both internal and external theft. Exchange operators are trained and certified, and have a legal responsibility to users.
Regular Transparent Audits
Provides visibility to Canadians that their funds are fully backed on the exchange, while protecting privacy and sensitive platform information.
Establishment of basic insurance standards/strategy, to expand over time. Removing risk to exchange users of any hot wallet theft.
Background and Justifications
Cold Storage Custody/Management After reviewing close to 100 cases, all thefts tend to break down into more or less the same set of problems: • Funds stored online or in a smart contract, • Access controlled by one person or one system, • 51% attacks (rare), • Funds sent to the wrong address (also rare), or • Some combination of the above. For the first two cases, practical solutions exist and are widely implemented on exchanges already. Offline multi-signature solutions are already industry standard. No cases studied found an external theft or exit scam involving an offline multi-signature wallet implementation. Security can be further improved through minimum numbers of signatories, background checks, providing autonomy and legal protections to each signatory, establishing best practices, and a training/certification program. The last two transaction risks occur more rarely, and have never resulted in a loss affecting the actual users of the exchange. In all cases to date where operators made the mistake, they've been fully covered by the exchange platforms. • 51% attacks generally only occur on blockchains with less security. The most prominent cases have been Bitcoin Gold and Ethereum Classic. The simple solution is to enforce deposit limits and block delays such that a 51% attack is not cost-effective. • The risk of transactions to incorrect addresses can be eliminated by a simple test transaction policy on large transactions. By sending a small amount of funds prior to any large withdrawals/transfers as a standard practice, the accuracy of the wallet address can be validated. The proposal covers all loss cases and goes beyond, while avoiding significant additional costs, risks, and limitations which may be associated with other frameworks like SOC II. On The Subject of Third Party Custodians Many Canadian platforms are currently experimenting with third party custody. From the standpoint of the exchange operator, they can liberate themselves from some responsibility of custody, passing that off to someone else. For regulators, it puts crypto in similar categorization to oil, gold, and other commodities, with some common standards. Platform users would likely feel greater confidence if the custodian was a brand they recognized. If the custodian was knowledgeable and had a decent team that employed multi-sig, they could keep assets safe from internal theft. With the right protections in place, this could be a great solution for many exchanges, particularly those that lack the relevant experience or human resources for their own custody systems. However, this system is vulnerable to anyone able to impersonate the exchange operators. You may have a situation where different employees who don't know each other that well are interacting between different companies (both the custodian and all their customers which presumably isn't just one exchange). A case study of what can go wrong in this type of environment might be Bitpay, where the CEO was tricked out of 5000 bitcoins over 3 separate payments by a series of emails sent legitimately from a breached computer of another company CEO. It's also still vulnerable to the platform being compromised, as in the really large $70M Bitfinex hack, where the third party Bitgo held one key in a multi-sig wallet. The hacker simply authorized the withdrawal using the same credentials as Bitfinex (requesting Bitgo to sign multiple withdrawal transactions). This succeeded even with the use of multi-sig and two heavily security-focused companies, due to the lack of human oversight (basically, hot wallet). Of course, you can learn from these cases and improve the security, but so can hackers improve their deception and at the end of the day, both of these would have been stopped by the much simpler solution of a qualified team who knew each other and employed multi-sig with properly protected keys. It's pretty hard to beat a human being who knows the business and the typical customer behaviour (or even knows their customers personally) at spotting fraud, and the proposed multi-sig means any hacker has to get through the scrutiny of 3 (or more) separate people, all of whom would have proper training including historical case studies. There are strong arguments both for and against using use of third party custodians. The proposal sets mandatory minimum custody standards would apply regardless if the cold wallet signatories are exchange operators, independent custodians, or a mix of both. On The Subject Of Insurance ShakePay has taken the first steps into this new realm (congratulations). There is no question that crypto users could be better protected by the right insurance policies, and it certainly feels better to transact with insured platforms. The steps required to obtain insurance generally place attention in valuable security areas, and in this case included a review from CipherTrace. One of the key solutions in traditional finance comes from insurance from entities such as the CDIC. However, historically, there wasn't found any actual insurance payout to any cryptocurrency exchange, and there are notable cases where insurance has not paid. With Bitpay, for example, the insurance agent refused because the issue happened to the third party CEO's computer instead of anything to do with Bitpay itself. With the Youbit exchange in South Korea, their insurance claim was denied, and the exchange ultimately ended up instead going bankrupt with all user's funds lost. To quote Matt Johnson in the original Lloyd's article: “You can create an insurance policy that protects no one – you know there are so many caveats to the policy that it’s not super protective.” ShakePay's insurance was only reported to cover their cold storage, and “physical theft of the media where the private keys are held”. Physical theft has never, in the history of cryptocurrency exchange cases reviewed, been reported as the cause of loss. From the limited information of the article, ShakePay made it clear their funds are in the hands of a single US custodian, and at least part of their security strategy is to "decline to confirm the custodian’s name on the record". While this prevents scrutiny of the custodian, it's pretty silly to speculate that a reasonably competent hacking group couldn't determine who the custodian is. A far more common infiltration strategy historically would be social engineering, which has succeeded repeatedly. A hacker could trick their way into ShakePay's systems and request a fraudulent withdrawal, impersonate ShakePay and request the custodian to move funds, or socially engineer their way into the custodian to initiate the withdrawal of multiple accounts (a payout much larger than ShakePay) exploiting the standard procedures (for example, fraudulently initiating or override the wallet addresses of a real transfer). In each case, nothing was physically stolen and the loss is therefore not covered by insurance. In order for any insurance to be effective, clear policies have to be established about what needs to be covered. Anything short of that gives Canadians false confidence that they are protected when they aren't in any meaningful way. At this time, the third party insurance market does not appear to provide adequate options or coverage, and effort is necessary to standardize custody standards, which is a likely first step in ultimately setting up an insurance framework. A better solution compared to third party insurance providers might be for Canadian exchange operators to create their own collective insurance fund, or a specific federal organization similar to the CDIC. Such an organization would have a greater interest or obligation in paying out actual cases, and that would be it's purpose rather than maximizing it's own profit. This would be similar to the SAFU which Binance has launched, except it would cover multiple exchanges. There is little question whether the SAFU would pay out given a breach of Binance, and a similar argument could be made for a insurance fund managed by a collective of exchange operators or a government organization. While a third party insurance provider has the strong market incentive to provide the absolute minimum coverage and no market incentive to payout, an entity managed by exchange operators would have incentive to protect the reputation of exchange operators/the industry, and the government should have the interest of protecting Canadians. On The Subject of Fractional Reserve There is a long history of fractional reserve failures, from the first banks in ancient times, through the great depression (where hundreds of fractional reserve banks failed), right through to the 2008 banking collapse referenced in the first bitcoin block. The fractional reserve system allows banks to multiply the money supply far beyond the actual cash (or other assets) in existence, backed only by a system of debt obligations of others. Safely supporting a fractional reserve system is a topic of far greater complexity than can be addressed by a simple policy, and when it comes to cryptocurrency, there is presently no entity reasonably able to bail anyone out in the event of failure. Therefore, this framework is addressed around entities that aim to maintain 100% backing of funds. There may be some firms that desire but have failed to maintain 100% backing. In this case, there are multiple solutions, including outside investment, merging with other exchanges, or enforcing a gradual restoration plan. All of these solutions are typically far better than shutting down the exchange, and there are multiple cases where they've been used successfully in the past. Proof of Reserves/Transparency/Accountability Canadians need to have visibility into the backing on an ongoing basis. The best solution for crypto-assets is a Proof of Reserve. Such ideas go back all the way to 2013, before even Mt. Gox. However, no Canadian exchange has yet implemented such a system, and only a few international exchanges (CoinFloor in the UK being an example) have. Many firms like Kraken, BitBuy, and now ShakePay use the Proof of Reserve term to refer to lesser proofs which do not actually cryptographically prove the full backing of all user assets on the blockchain. In order for a Proof of Reserve to be effective, it must actually be a complete proof, and it needs to be understood by the public that is expected to use it. Many firms have expressed reservations about the level of transparency required in a complete Proof of Reserve (for example Kraken here). While a complete Proof of Reserves should be encouraged, and there are some solutions in the works (ie TxQuick), this is unlikely to be suitable universally for all exchange operators and users. Given the limitations, and that firms also manage fiat assets, a more traditional audit process makes more sense. Some Canadian exchanges (CoinSquare, CoinBerry) have already subjected themselves to annual audits. However, these results are not presently shared publicly, and there is no guarantee over the process including all user assets or the integrity and independence of the auditor. The auditor has been typically not known, and in some cases, the identity of the auditor is protected by a NDA. Only in one case (BitBuy) was an actual report generated and publicly shared. There has been no attempt made to validate that user accounts provided during these audits have been complete or accurate. A fraudulent fractional exchange, or one which had suffered a breach they were unwilling to publicly accept (see CoinBene), could easily maintain a second set of books for auditors or simply exclude key accounts to pass an individual audit. The proposed solution would see a reporting standard which includes at a minimum - percentage of backing for each asset relative to account balances and the nature of how those assets are stored, with ownership proven by the auditor. The auditor would also publicly provide a "hash list", which they independently generate from the accounts provided by the exchange. Every exchange user can then check their information against this public "hash list". A hash is a one-way form of encryption, which fully protects the private information, yet allows anyone who knows that information already to validate that it was included. Less experienced users can take advantage of public tools to calculate the hash from their information (provided by the exchange), and thus have certainty that the auditor received their full balance information. Easy instructions can be provided. Auditors should be impartial, their identities and process public, and they should be rotated so that the same auditor is never used twice in a row. Balancing the cost of auditing against the needs for regular updates, a 6 month cycle likely makes the most sense. Hot Wallet Management The best solution for hot wallets is not to use them. CoinBerry reportedly uses multi-sig on all withdrawals, and Bitmex is an international example known for their structure devoid of hot wallets. However, many platforms and customers desire fast withdrawal processes, and human validation has a cost of time and delay in this process. A model of self-insurance or separate funds for hot wallets may be used in these cases. Under this model, a platform still has 100% of their client balance in cold storage and holds additional funds in hot wallets for quick withdrawal. Thus, the risk of those hot wallets is 100% on exchange operators and not affecting the exchange users. Since most platforms typically only have 1%-5% in hot wallets at any given time, it shouldn't be unreasonable to build/maintain these additional reserves over time using exchange fees or additional investment. Larger withdrawals would still be handled at regular intervals from the cold storage. Hot wallet risks have historically posed a large risk and there is no established standard to guarantee secure hot wallets. When the government of South Korea dispatched security inspections to multiple exchanges, the results were still that 3 of them got hacked after the inspections. If standards develop such that an organization in the market is willing to insure the hot wallets, this could provide an acceptable alternative. Another option may be for multiple exchange operators to pool funds aside for a hot wallet insurance fund. Comprehensive coverage standards must be established and maintained for all hot wallet balances to make sure Canadians are adequately protected.
Current Draft Proposal
(1) Proper multi-signature cold wallet storage. (a) Each private key is the personal and legal responsibility of one person - the “signatory”. Signatories have special rights and responsibilities to protect user assets. Signatories are trained and certified through a course covering (1) past hacking and fraud cases, (2) proper and secure key generation, and (3) proper safekeeping of private keys. All private keys must be generated and stored 100% offline by the signatory. If even one private keys is ever breached or suspected to be breached, the wallet must be regenerated and all funds relocated to a new wallet. (b) All signatories must be separate background-checked individuals free of past criminal conviction. Canadians should have a right to know who holds their funds. All signing of transactions must take place with all signatories on Canadian soil or on the soil of a country with a solid legal system which agrees to uphold and support these rules (from an established white-list of countries which expands over time). (c) 3-5 independent signatures are required for any withdrawal. There must be 1-3 spare signatories, and a maximum of 7 total signatories. The following are all valid combinations: 3of4, 3of5, 3of6, 4of5, 4of6, 4of7, 5of6, or 5of7. (d) A security audit should be conducted to validate the cold wallet is set up correctly and provide any additional pertinent information. The primary purpose is to ensure that all signatories are acting independently and using best practices for private key storage. A report summarizing all steps taken and who did the audit will be made public. Canadians must be able to validate the right measures are in place to protect their funds. (e) There is a simple approval process if signatories wish to visit any country outside Canada, with a potential whitelist of exempt countries. At most 2 signatories can be outside of aligned jurisdiction at any given time. All exchanges would be required to keep a compliant cold wallet for Canadian funds and have a Canadian office if they wish to serve Canadian customers. (2) Regular and transparent solvency audits. (a) An audit must be conducted at founding, after 3 months of operation, and at least once every 6 months to compare customer balances against all stored cryptocurrency and fiat balances. The auditor must be known, independent, and never the same twice in a row. (b) An audit report will be published featuring the steps conducted in a readable format. This should be made available to all Canadians on the exchange website and on a government website. The report must include what percentage of each customer asset is backed on the exchange, and how those funds are stored. (c) The auditor will independently produce a hash of each customer's identifying information and balance as they perform the audit. This will be made publicly available on the exchange and government website, along with simplified instructions that each customer can use to verify that their balance was included in the audit process. (d) The audit needs to include a proof of ownership for any cryptocurrency wallets included. A satoshi test (spending a small amount) or partially signed transaction both qualify. (e) Any platform without 100% reserves should be assessed on a regular basis by a government or industry watchdog. This entity should work to prevent any further drop, support any private investor to come in, or facilitate a merger so that 100% backing can be obtained as soon as possible. (3) Protections for hot wallets and transactions. (a) A standardized list of approved coins and procedures will be established to constitute valid cold storage wallets. Where a multi-sig process is not natively available, efforts will be undertaken to establish a suitable and stable smart contract standard. This list will be expanded and improved over time. Coins and procedures not on the list are considered hot wallets. (b) Hot wallets can be backed by additional funds in cold storage or an acceptable third-party insurance provider with a comprehensive coverage policy. (c) Exchanges are required to cover the full balance of all user funds as denominated in the same currency, or double the balance as denominated in bitcoin or CAD using an established trading rate. If the balance is ever insufficient due to market movements, the firm must rectify this within 24 hours by moving assets to cold storage or increasing insurance coverage. (d) Any large transactions (above a set threshold) from cold storage to any new wallet addresses (not previously transacted with) must be tested with a smaller transaction first. Deposits of cryptocurrency must be limited to prevent economic 51% attacks. Any issues are to be covered by the exchange. (e) Exchange platforms must provide suitable authentication for users, including making available approved forms of two-factor authentication. SMS-based authentication is not to be supported. Withdrawals must be blocked for 48 hours in the event of any account password change. Disputes on the negligence of exchanges should be governed by case law.
Continued review of existing OSC feedback is still underway. More feedback and opinions on the framework and ideas as presented here are extremely valuable. The above is a draft and not finalized. The process of further developing and bringing a suitable framework to protect Canadians will require the support of exchange operators, legal experts, and many others in the community. The costs of not doing such are tremendous. A large and convoluted framework, one based on flawed ideas or implementation, or one which fails to properly safeguard Canadians is not just extremely expensive and risky for all Canadians, severely limiting to the credibility and reputation of the industry, but an existential risk to many exchanges. The responsibility falls to all of us to provide our insight and make our opinions heard on this critical matter. Please take the time to give your thoughts.
Mcashchain’s vision is to gather information and store all of them in a decentralized ledger, so as to change payment processes and financial procedures towards being cheaper, more convenient and more room for automation. Mcashchain focuses on security, lightning-speed, efficient and of highest as well as latest technology transactions; so as to create an all-in-one platform within Midas Protocol ecosystem and global finance.
Throughout 11 years of development, Blockchain has evolved and been upgraded step by step, generation by generation. Blockchain 1.0: Allows storing, exchanging properties safely and securely. Bitcoin is the pioneer. Blockchain 2.0: The term “smart contract” was coined. ETH is the pioneer. Blockchain 3.0: Using the strengths of the previous 2 generations, aiming to employ one specific purpose in digital products, the familiar term “Dapp” was coined. Mcash Chain: Owns all of the strong points that were developed in each generation, optimizes the algorithms and adds the technologies to guarantee a definite ability of applying to reality; especially with blockchain’s most powerful application: DeFi. McashChain successfully employed Mainnet, launched Mcashchain even before its introduction to the community and possessed its own coin - MCASH. Obviously, Mcashchain removed the “exists only on paper” part found in most ICO in the market.
Block closing time: 3s Can process upto 100.000 tx
dApps Smart Contract Anonymous-on-Demand Smart staking Others: POS - DAV Consensus Mechanism. Comparing MCASH Exchange fees close to 0. Smart-fee technology results in cheaper transactions, yet improvised to prevent spam transactions that are dangerous to Blockchain. Smart staking Proof-of-Stake (PoH) Consensus Mechanism ranks the chains based on “the amount of MCASH held” and “the number of transactions processed”. Consequently, staking profits (coin digging) are attractive and fair for the stakeholders. Stakeholders - those who possess a large number of coins and Dapps developers are the 2 groups that have brought MCASH success. Anonymous coin exchange technology - Zero M Zero M technology allows users to anonymously exchange coins, without showing the detailed amount and information of the senders and the receivers. Yet, that does not mean Mcashchain is an anonymous blockchain, as Zero M technology allows users to switch between anonymous and normal modes whenever they want. Smartcontract Smart Contract technology has become a vital function in automating transactions in currently popular Blockchains such as ETH, EOS, TRON, Stellar,… MCASH of course is no exception, Mcashchain Smart Contract brings safe, automated and optimized exchange options. The ability to create Token Token economy is the factor that makes ETH successful, with over 98% crypto available in the market using Dapps - decentralized applicationsứng. Mcashchain Smart Contract allows to create tokens and rewards mechanisms, in cases the token chains have several transactions. Mcashbank – Ecosystem and DEFI Blockchain has developed from Satoshi Nakamoto’s vision to a secured properties storing and exchanging platform not under any control. It has also entered a new phase and become the platforms that are very useful in various financial fields worldwide. Hence, the needs to create an ecosystem of applications revolving one blockchain are heightened, so as to prove the feasibility of that blockchain. Decentralized exchange platform All currently powerful and popular blockchain platforms possess their own DEX, such as Etherdelta and IDEX of ETH, Binance DEX, Switcheo of NEO, - just amongst others. Decentralized platforms could prove the ability of blockchain. Mcashchain also develops its own platform Unidex, as a platform supports exchanging digital properties easily.
MCASH DEFI PLATFORM
Mcashchain’s vision is to develop decentralised finance products in the future. The solution is a Mcash blockchain platform and a set of tools to build DeFi products right on Mcashchain. A complete DeFi ecosystem: Lending, saving, payment applications, automated accounting system, etc.
Is bitcoin really viable as a peer-to-peer electronic cash? Due to high transaction costs and slow transaction speeds, how can we ever use bitcoin to purchase, for example, a Sprite and a bag of potato chips at a gas station? If I want to send a micropayment, for example, of 1000 sats on-chain I can pretty much forget about it because no miner will for and the ftransaction hangs out in the memepool indefinitely. I had a lot of hope for lightning network, but I am now starting to have doubts about its long-term success. What happens when someone using lightning wants to settling a microtransaction on the bitcoin blockchain? How secure is bitcoin really? Remember when cz binance wanted to people to thank him for not ordering a re-org to recover lost funds? Isn't bitcoin mining dangerously centralized? What if in the future there is a terrorist attack by government or other criminal orgs that involve bombing or burning large bitcoin mining facilities. Satoshi writes in the white paper that we propose a solution to the double spending problem, but has this really been achieved? Double spends are still possible with a 51% attack, so what solution to double spending has been achieved. Can't large mining pools conspire to attack bitcoin. These are concerns I have for the long-term viability and intrinsic value of bitcoin.
https://preview.redd.it/dju4oz1g16c51.jpg?width=2400&format=pjpg&auto=webp&s=fe57edcd81ffa31bff95fe3026055020f7720dce Cryptocurrencies have now become a buzz word. Despite the resilience that it faced initially, cryptocurrencies have come a long way. There are a total of around 5000 cryptocurrencies circulating in the market. If you plan to make a career in this domain, you need to run through the following questions. 1. What is a cryptocurrency? Cryptocurrency is a digital currency that is transacted on a distributed ledger platform or decentralized platform or Blockchain. Any third party does not govern it, and the transaction takes place between peer-to-peer. 2. When was the first Cryptocurrency introduced? The first Cryptocurrency or Bitcoin was introduced in the year 2009. 3. Who created Cryptocurrency? Satoshi Nakamoto gave the first Cryptocurrency. The white paper for the same was given in 2008 and a computer program in 2009. 4. What are the top three cryptocurrencies? The following are the three cryptocurrencies: • Bitcoin (BTC) $128bn. • Ethereum (ETH) $19.4bn. • XRP (XRP) $8.22bn. 5. Where can you store Cryptocurrency? Cryptocurrencies are stored in a digital wallet, and this is accessible via public and private keys. A public key is the address of your wallet, and the private key is the one that helps you in executing the transaction. 6. Which is the safest wallet for Cryptocurrency? The most secured wallet for Cryptocurrency is a hardware wallet. It is not connected to the internet, and thus it is free from a hacking attack. It is also known as a cold wallet. 7. From where I can purchase cryptocurrencies? The easiest way to buy Cryptocurrency is via crypto exchange. You can several crypto exchanges like Coinbase, Bitbuy, CHANGENow, Kraken etc. 8. What are the ten popular crypto exchanges? The following are the best ten popular crypto exchange:
9. What are the key features of Blockchain? We all know that Bitcoin or any other cryptocurrency runs on the Blockchain platform, which gives it some additional features like decentralization, transparency, faster speed, immutability and anonymity. 10. What is AltCoin? It means Alternative Coin. All the cryptocurrencies other than Bitcoin are alternative coins. Similar to Bitcoin, AltCoins are not regulated by any bank. The market governs them. 11. Are cryptocurrency sites regulated? Most cryptocurrency websites are not regulated. 12. How are Cryptocurrency and Blockchain related? Blockchain platform aids cryptocurrency transactions, which makes use of authentication and encryption techniques. Cryptography enables technology for Cryptocurrency, thus ensuring secure transactions. 13. What is a nonce? The mining process works on the pattern of validating transactions by solving a mathematical puzzle called proof-of-work. The latter determine a number or nonce along with a cryptographic hash algorithm to produce a hash value lower than a predefined target. The nonce is a random value used to vary the value of hash so that the final hash value meets the hash conditions. 14. How is Cryptocurrency different from other forms of payment? Cryptocurrency runs on Blockchain technology, which gives it an advantage of immutability, cryptography, and decentralization. All the payments are recorded on the DLT, which is accessible from any part of the world. Moreover, it keeps the identity of the user anonymous. 15. Which is the best Cryptocurrency? Several cryptocurrencies have surged into the market, and you can choose any of these. The best way to choose the right cryptocurrencies is to look at its market value and assess its performance. Some of the prominent choices are Bitcoin, Ethereum, Litecoin, XRP etc. 16. What is the worst thing that can happen while using Cryptocurrency? One of the worst things could be you losing your private keys. These are the passwords that secure your wallet, and once they are lost, you cannot recover them. 17. What is the private key and public key? Keys secure your cryptocurrency wallet; these are public key and private key. The public key is known to all, like your bank account number, on the hand, the private key is the password which protects your wallet and is only known to you. 18. How much should one invest in Cryptocurrency? Well, investing in Cryptocurrency is a matter of choice. You can study how the market is performing, and based on the best performing cryptocurrency, you can choose to invest. If you are new to this, then it’s advisable that you must start small. 19. From where can one buy Bitcoin using Fiat currency? Two of the popular choices that you have are Coinbase and Binance, where you can purchase Cryptocurrency using fiat currency. 20. Are the coins safe on exchanges? All the exchanges have a high level of security. Besides, these are regularly updated to meet the security requirements, but it’s not advisable to leave your coins on them since they are prone to attack. Instead, you can choose a hard wallet to store your cryptocurrencies, which are considered the safest. 21. What determines the price of cryptocurrencies? The price of cryptocurrencies is determined by the demand and supply in the market. Besides, how the market is performing also determines the price of cryptocurrencies. 22. What are some of the prominent cryptocurrencies terminologies? There are jargons which are continuously used by people using cryptocurrencies are: DYOR: Do Your Own Research Dapps: Decentralized Applications Spike: Shapr increase in the price of the Cryptocurrency Pump: Manipulated increase in the price of a cryptocurrency Dump: Shapr decline in the price of Cryptocurrency 23. How can I check the value of cryptocurrencies? Various platforms will give you an update on the price of cryptocurrencies. You can keep a tab on them and check the pricing of cryptocurrencies. 24. What are the advantages of using digital currencies? There are various advantages like you are saved from double-spending, the transactions are aster and secure. Moreover, digital currencies now have global acceptance. 25. What is the difference between cryptocurrencies and fiat currencies? Cryptocurrencies are digital currencies which run on the Blockchain platform and are not governed by any government agencies, while the fiat currencies are the ones which are governed by authorities and government. Conclusion- This was all the FAQs pertaining to cryptocurrency, for more such information keep coming back to Blockchain Council.
Crypto-Powered: Understanding Bitcoin, Ethereum, and DeFi
Until one understands the basics of this tech, they won’t be able to grasp or appreciate the impact it has on our digital bank, Genesis Block. https://reddit.com/link/ho4bif/video/n0euarkifu951/player This is the second post ofCrypto-Powered— a new series that examines what it means forGenesis Blockto be a digital bank that’s powered by crypto, blockchain, and decentralized protocols. --- Our previous post set the stage for this series. We discussed the state of consumer finance and how the success of today’s high-flying fintech unicorns will be short-lived as long as they’re building on legacy finance — a weak foundation that is ripe for massive disruption. Instead, the future of consumer finance belongs to those who are deeply familiar with blockchain tech & decentralized protocols, build on it as the foundation, and know how to take it to the world. Like Genesis Block. Today we begin our journey down the crypto rabbit hole. This post will be an important introduction for those still learning about Bitcoin, Ethereum, or DeFi (Decentralized Finance). This post (and the next few) will go into greater detail about how this technology gives Genesis Block an edge, a superpower, and an unfair advantage. Let’s dive in… https://preview.redd.it/1ugdxoqjfu951.jpg?width=650&format=pjpg&auto=webp&s=36edde1079c3cff5f6b15b8cd30e6c436626d5d8
Bitcoin: The First Cryptocurrency
There are plenty of online resources to learn about Bitcoin (Coinbase, Binance, Gemini, Naval, Alex Gladstein, Marc Andreessen, Chris Dixon). I don’t wanna spend a lot of time on that here, but let’s do a quick overview for those still getting ramped up. Cryptocurrency is the most popular use-case of blockchain technology today. And Bitcoin was the first cryptocurrency to be invented.
Bitcoin is the most decentralized of all crypto assets today — no government, company, or third party can control or censor it.
Bitcoin has two primary features (as do most other cryptocurrencies):
Send Value You can send value to anyone, anywhere in the world. Nobody can intercept, delay or stop it — not even governments or financial institutions. Unlike with traditional money transfers or bank wires, there are no layers of middlemen. This results in a process that is much more cost-efficient. Some popular use-cases include remittances and cross-border payments.
A few negative moments in Bitcoin’s history include the collapse of Mt. Gox — which resulted in hundreds of millions of customer funds being stolen — as well as Bitcoin’s role in dark markets like Silk Road — where Bitcoin arguably found its initial userbase. However, like most breakthrough technology, Bitcoin is neither good nor bad. It’s neutral. People can use it for good or they can use it for evil. Thankfully, it’s being used less and less for illicit activity. Criminals are starting to understand that transactions on a blockchain are public and traceable — it’s exactly the type of system they usually try to avoid. And it’s true, at this point “a lot more” crimes are actually committed with fiat than crypto. As a result, the perception of bitcoin and cryptocurrency has been changing over the years to a more positive light. Bitcoin has even started to enter the world of media & entertainment. It’s been mentioned in Hollywood films like Spiderman: Into the Spider-Verse and in songs from major artists like Eminem. It’s been mentioned in countless TV shows like Billions, The Simpsons, Big Bang Theory, Gray’s Anatomy, Family Guy, and more. As covid19 has ravaged economies and central banks have been printing money, Bitcoin has caught the attention of many legendary Wall Street investors like Paul Tudor Jones, saying that Bitcoin is a great bet against inflation (reminding him of Gold in the 1970s). Cash App already lets their 25M users buy Bitcoin. It’s rumored that PayPal and Venmo will soon let their 325M users start buying Bitcoin. Bitcoin is by far the most dominant cryptocurrency and is showing no signs of slowing down. For more than a decade it has delivered on its core use-cases — being able to send or store value.
At this point, Bitcoin has very much entered the zeitgeist of modern pop culture — at least in the West.
When Ethereum launched in 2015, it opened up a world of new possibilities and use-cases for crypto. With Ethereum Smart Contracts (i.e. applications), this exciting new digital money (cryptocurrency) became a lot less dumb. Developers could now build applications that go beyond the simple use-cases of “send value” & “store value.” They could program cryptocurrency to have rules, behavior, and logic to respond to different inputs. And always enforced by code. Additional reading on Ethereum fromLinda XieorVitalik Buterin.
Because these applications are built on blockchain technology (Ethereum), they preserve many of the same characteristics as Bitcoin: no one can stop, censor or shut down these apps because they are decentralized.
Just as tokens grew in popularity in 2017–2018, so did online marketplaces where these tokens could be bought, sold, and traded. This was a fledgling asset class — the merchants selling picks, axes, and shovels were finally starting to emerge.
I had a front-row seat — both as an investor and token creator. This was the Wild West with all the frontier drama & scandal that you’d expect.
Binance — now the world’s largest crypto exchange —was launched during this time. They along with many others (especially from Asia) made it really easy for speculators, traders, and degenerate gamblers to participate in these markets. Similar to other financial markets, the goal was straightforward: buy low and sell high. https://preview.redd.it/tytsu5jnfu951.jpg?width=600&format=pjpg&auto=webp&s=fe3425b7e4a71fa953b953f0c7f6eaff6504a0d1 That period left an embarrassing stain on our industry that we’ve still been trying to recover from. It was a period rampant with market manipulation, pump-and-dumps, and scams. To some extent, the crypto industry still suffers from that today, but it’s nothing compared to what it was then.
While the potential of getting filthy rich brought a lot of fly-by-nighters and charlatans into the industry, it also brought a lot of innovators, entrepreneurs, and builders.
The launch and growth of Ethereum has been an incredible technological breakthrough. As with past tech breakthroughs, it has led to a wave of innovation, experimentation, and development. The creativity around tokens, smart contracts, and decentralized applications has been fascinating to witness. Now a few years later, the fruits of those labors are starting to be realized.
I know that for the hardcore crypto people, what we covered today is nothing new. But for those who are still getting up to speed, welcome! I hope this was helpful and that it fuels your interest to learn more. Until you understand the basics of this technology, you won’t be able to fully appreciate the impact that it has on our new digital bank, Genesis Block. You won’t be able to understand the implications, how it relates, or how it helps. After today’s post, some of you probably have a lot more questions. What are specific examples or use-cases of DeFi? Why does it need to be on a blockchain? What benefits does it bring to Genesis Block and our users? In upcoming posts, we answer these questions. Today’s post was just Level 1. It set the foundation for where we’re headed next: even deeper down the crypto rabbit hole. --- Other Ways to Consume Today's Episode:
We have a lot more content coming. Be sure to follow our channels: https://genesisblock.com/follow/ Have you already downloaded the app? We're Genesis Block, a new digital bank that's powered by crypto & decentralized protocols. The app is live in the App Store (iOS & Android). Get the link to download at https://genesisblock.com/download
A double-spend occurs when the same funds are spent more than once. The term is used almost exclusively in the context of digital money — after all, you’d have a hard time spending the same physical cash twice. When you pay for a coffee today, you hand cash over to a cashier who probably locks it in a register. You can’t go to the coffee shop across the road and pay for another coffee with the same bill. In digital cash schemes, there’s the possibility that you could. You’ve surely duplicated a computer file before — you just copy and paste it. You can email the same file to ten, twenty, fifty people. Since digital money is just data, you need to prevent people from copying and spending the same units in different places. Otherwise, your currency will collapse in no time. For a more in-depth look at double-spending, check out Double Spending Explained.
Why is Proof of Work necessary?
If you’ve read our guide to blockchain technology, you’ll know that users broadcast transactions to the network. Those transactions aren’t immediately considered valid, though. That only happens when they get added to the blockchain. The blockchain is a big database that every user can see, so they can check if funds have been spent before. Picture it like this: you and three friends have a notepad. Anytime one of you wants to make a transfer of whatever units you’re using, you write it down — Alice pays Bob five units, Bob pays Carol two units, etc. There’s another intricacy here — each time you make a transaction, you refer to the transaction where the funds came from. So, if Bob was paying Carol with two units, the entry would actually look like the following: Bob pays Carol two units from this earlier transaction with Alice. Now, we have a way to track the units. If Bob tries to make another transaction using the same units he just sent to Carol, everyone will know immediately. The group won’t allow the transaction to be added to the notepad. Now, this might work well in a small group. Everyone knows each other, so they’ll probably agree on which of the friends should add transactions to the notepad. What if we want a group of 10,000 participants? The notepad idea doesn’t scale well, because nobody wants to trust a stranger to manage it. This is where Proof of Work comes in. It ensures that users aren’t spending money that they don’t have the right to spend. By using a combination of game theory and cryptography, a PoW algorithm enables anyone to update the blockchain according to the rules of the system.
How does PoW work?
Our notepad above is the blockchain. But we don’t add transactions one by one — instead, we lump them into blocks. We announce the transactions to the network, then users creating a block will include them in a candidate block. The transactions will only be considered valid once their candidate block becomes a confirmed block, meaning that it has been added to the blockchain. Appending a block isn’t cheap, however. Proof of Work requires that a miner (the user creating the block) uses up some of their own resources for the privilege. That resource is computing power, which is used to hash the block’s data until a solution to a puzzle is found. Hashing the block’s data means that you pass it through a hashing function to generate a block hash. The block hash works like a “fingerprint” — it’s an identity for your input data and is unique to each block. It’s virtually impossible to reverse a block hash to get the input data. Knowing an input, however, it’s trivial for you to confirm that the hash is correct. You just have to submit the input through the function and check if the output is the same. In Proof of Work, you must provide data whose hash matches certain conditions. But you don’t know how to get there. Your only option is to pass your data through a hash function and to check if it matches the conditions. If it doesn’t, you’ll have to change your data slightly to get a different hash. Changing even one character in your data will result in a totally different result, so there’s no way of predicting what an output might be. As a result, if you want to create a block, you’re playing a guessing game. You typically take information on all of the transactions that you want to add and some other important data, then hash it all together. But since your dataset won’t change, you need to add a piece of information that is variable. Otherwise, you would always get the same hash as output. This variable data is what we call a nonce. It’s a number that you’ll change with every attempt, so you’re getting a different hash every time. And this is what we call mining. Summing up, mining is the process of gathering blockchain data and hashing it along with a nonce until you find a particular hash. If you find a hash that satisfies the conditions set out by the protocol, you get the right to broadcast the new block to the network. At this point, the other participants of the network update their blockchains to include the new block. For major cryptocurrencies today, the conditions are incredibly challenging to satisfy. The higher the hash rate on the network, the more difficult it is to find a valid hash. This is done to ensure that blocks aren’t found too quickly. As you can imagine, trying to guess massive amounts of hashes can be costly on your computer. You’re wasting computational cycles and electricity. But the protocol will reward you with cryptocurrency if you find a valid hash. Let’s recap what we know so far:
It’s expensive for you to mine.
You’re rewarded if you produce a valid block.
Knowing an input, a user can easily check its hash — non-mining users can verify that a block is valid without expending much computational power.
So far, so good. But what if you try to cheat? What’s to stop you from putting a bunch of fraudulent transactions into the block and producing a valid hash? That’s where public-key cryptography comes in. We won’t go into depth in this article, but check out What is Public-Key Cryptography? for a comprehensive look at it. In short, we use some neat cryptographic tricks that allow any user to verify whether someone has a right to move the funds they’re attempting to spend. When you create a transaction, you sign it. Anyone on the network can compare your signature with your public key, and check whether they match. They’ll also check if you can actually spend your funds and that the sum of your inputs is higher than the sum of your outputs (i.e., that you’re not spending more than you have). Any block that includes an invalid transaction will be automatically rejected by the network. It’s expensive for you to even attempt to cheat. You’ll waste your own resources without any reward. Therein lies the beauty of Proof of Work: it makes it expensive to cheat, but profitable to act honestly. Any rational miner will be seeking ROI, so they can be expected to behave in a way that guarantees revenue.
Proof of Work vs. Proof of Stake
There are many consensus algorithms, but one of the most highly-anticipated ones is Proof of Stake (PoS). The concept dates back to 2011, and has been implemented in some smaller protocols. But it has yet to see adoption in any of the big blockchains. In Proof of Stake systems, miners are replaced with validators. There’s no mining involved and no race to guess hashes. Instead, users are randomly selected — if they’re picked, they must propose (or “forge”) a block. If the block is valid, they’ll receive a reward made up of the fees from the block’s transactions. Not just any user can be selected, though — the protocol chooses them based on a number of factors. To be eligible, participants must lock up a stake, which is a predetermined amount of the blockchain’s native currency. The stake works like bail: just as defendants put up a large sum of money to disincentivize them from skipping trial, validators lock up a stake to disincentivize cheating. If they act dishonestly, their stake (or a portion of it) will be taken. Proof of Stake does have some benefits over Proof of Work. The most notable one is the smaller carbon footprint — since there’s no need for high-powered mining farms in PoS, the electricity consumed is only a fraction of that consumed in PoW. That said, it has nowhere near the track record of PoW. Although it could be perceived as wasteful, mining is the only consensus algorithm that’s proven itself at scale. In just over a decade, it has secured trillions of dollars worth of transactions. To say with certainty whether PoS can rival its security, staking needs to be properly tested in the wild.
Proof of Work was the original solution to the double-spend problem and has proven to be reliable and secure. Bitcoin proved that we don’t need centralized entities to prevent the same funds from being spent twice. With clever use of cryptography, hash functions, and game theory, participants in a decentralized environment can agree on the state of a financial database.
White Paper, Miner, Pizza … | "Old Objects" in the Cryptocurrency Museum
https://preview.redd.it/giu1ssilga151.jpg?width=900&format=pjpg&auto=webp&s=41510785ccdc0d99544ec74229f62427d1c0ce3e Museum has played the role of a time recorder. Talking about bitcoin, more than ten years has passed since the creation of it. Although it is uncomparable to the stock market with a hundred years of history, during the ten years, in the different stages of the development of bitcoin and blockchain have continuously poured in geeks, miners, speculators, newbies, leaving keywords such as sudden rich, myth, scam, belief, revolution, etc. There are also many “old objects” with stories in the “Museum” of the cryptocurrency realm. On Museum Day, let ’s review the stories brought by these “old objects”. The First Digital Currency White Paper — Bitcoin White Paper On Oct. 31, 2008, Satoshi Nakamoto released the Bitcoin white paper — A Peer-to-Peer Electronic Cash System in the cryptographic mail group where he belongs, and Bitcoin was born since then. A white paper is a document that explains the purpose and technology used in cryptocurrency. Usually a cryptocurrency uses the white paper to help people understand what it provides, and it is also an important information channel for investors to understand a project. Therefore, the level of the white paper affects people’s confidence towards the coin. In a word, in the cryptocurrency and blockchain industry, the value of a white paper is equivalent to that of a standard financing speech. The white paper plays a vital role in this emerging market. The First Public Bitcoin-Physical Transaction — Pizza Since Satoshi Nakamoto mined the Bitcoin genesis block on January 3, 2009, Bitcoin has only been spread among the small crowd and has not realized its value. Not until May 22, 2010, Bitcoin enthusiast “Laszlo Hanyecz” bought a pizza coupon worth $25 with 10,000 bitcoins. This is the first public bitcoin-physical transaction. Bitcoin has its price with 0.3 cents per bitcoin. This day has also become the famous “Bitcoin Pizza Day” in Bitcoin history. Bitcoin as the imagination of the financial system has more practical significance. The tenth anniversary is coming. How will you commemorate it? Will you buy a pizza? The First Digital Asset Exchange — Bitcoinmarket.com After the birth of Bitcoin, in addition to mining, the only way to get Bitcoin in the early days was to conduct transactions on forums or IRC (commonly known as Internet Relay Chat). However, this method involves both long transaction time and great security risk. In March 2010, the first digital asset exchange — Bitcoinmarket.com launched. However, due to lack of liquidity and transaction depth, it disappeared soon after its establishment, but Bitcoinmarket.com opened the era of the operation of the cryptocurrency realm exchange 1.0. On June 9, 2011, China’s first Bitcoin exchange — Bitcoin China (BTCChina) launched. Its founder, Yang Linke, translated Bitcoin into Chinese “比特币” for the first time. In 2013, China’s bitcoin trading entered the golden age, and exchanges sprung up. China monopolized more than 90% of the world’s bitcoin transactions. Now, if the top three exchanges Binance, Huobi Global, OKEx are the Exchange 2.0, then the index exchange represented by 58COIN called the 3.0 version, leading the trend. The First Generation of High-Performance Miner — ASIC Miner When Satoshi Nakamoto created Bitcoin, the only way to get it is to use computers (including home computers) to mine, mainly relying on the CPU to calculate. However, as the value of digital currencies such as Bitcoin has become higher and higher, mining has become an industry with the competition is getting fiercer, accompanied by increasing difficulty of mining. Therefore, hardware performance competition starts. In July 2012, the genius Jiang Xinyu (Internet nickname is “Friedcat”) from the junior class of the University of Science and Technology declared at the forum that he could make ASIC miners (chips). As far as mining computing power is concerned, ASICs can be tens of thousands or more higher than the same-generation CPUs and GPUs. At the beginning of 2013, Zhang Nanqian (Pumpkin Zhang), a suspended doctoral student from the Beijing University of Aeronautics and Astronautics, developed the ASIC miner and named it “Avalon”. In June 2013, the Friedcat’s miner USB was finally released, and it maintained 20% of the computing power of the entire network. At the end of 2013, Wu Jihan, used the tens of millions yuan earned from Friedcat through investment, worked together with Jenke group, to develop the Antminer S1. Since then, the miner manufacturer Bitmain began to enter the stage of history. It is no exaggeration to say that Friedcat and Zhang Nangeng have opened the domestic “mining” era. The Birthplace of China’s Bitcoin — Garage Coffee It is not only the “old objects” that record history, but also a place that everyone in the cryptocurrency realm aspires to. Guo Hongcai once said, “Without no The Garage Café, there will be no cryptocurrency realm today. Since it is a very mysterious place that all waves of people from the café joint together to create today’s digital asset industry. ▲ In March 2013, American student Jake Smith successfully purchased a cup of coffee at The Garage Café with 0.131 bitcoins. This move attracted the attention of CCTV, and it conducted an interview. Indeed, The Garage Café is the world ’s first entrepreneurial-themed coffee shop. It has been legendary since its establishment in 2011. The Garage Cafét is not only the core coordinate on China’s Bitcoin map, but also the birthplace of the Chinese cryptocurrency circle, where digital asset realm tycoons including Guo Hongcai, Zhao Dong, Li Xiaolai, Li Lin have made their ways. The development of digital currency is only 11 years old. Through these “old objects”, we review the various stories of this wave of technology together, hoping to help you understand the development process of the digital currency field. Meanwhile, I also remind all practitioners to use history as a mirror and forge ahead. Website: https://www.58ex.com/ Twitter: https://twitter.com/58_coin Facebook: https://www.facebook.com/coin.58COIN Telegram: https://t.me/official58 Medium: https://medium.com/@58coin_blog/
Technical: A Brief History of Payment Channels: from Satoshi to Lightning Network
Who cares about political tweets from some random country's president when payment channels are a much more interesting and are actually capable of carrying value? So let's have a short history of various payment channel techs!
Generation 0: Satoshi's Broken nSequence Channels
Because Satoshi's Vision included payment channels, except his implementation sucked so hard we had to go fix it and added RBF as a by-product. Originally, the plan for nSequence was that mempools would replace any transaction spending certain inputs with another transaction spending the same inputs, but only if the nSequence field of the replacement was larger. Since 0xFFFFFFFF was the highest value that nSequence could get, this would mark a transaction as "final" and not replaceable on the mempool anymore. In fact, this "nSequence channel" I will describe is the reason why we have this weird rule about nLockTime and nSequence. nLockTime actually only works if nSequence is not 0xFFFFFFFF i.e. final. If nSequence is 0xFFFFFFFF then nLockTime is ignored, because this if the "final" version of the transaction. So what you'd do would be something like this:
You go to a bar and promise the bartender to pay by the time the bar closes. Because this is the Bitcoin universe, time is measured in blockheight, so the closing time of the bar is indicated as some future blockheight.
For your first drink, you'd make a transaction paying to the bartender for that drink, paying from some coins you have. The transaction has an nLockTime equal to the closing time of the bar, and a starting nSequence of 0. You hand over the transaction and the bartender hands you your drink.
For your succeeding drink, you'd remake the same transaction, adding the payment for that drink to the transaction output that goes to the bartender (so that output keeps getting larger, by the amount of payment), and having an nSequence that is one higher than the previous one.
Eventually you have to stop drinking. It comes down to one of two possibilities:
You drink until the bar closes. Since it is now the nLockTime indicated in the transaction, the bartender is able to broadcast the latest transaction and tells the bouncers to kick you out of the bar.
You wisely consider the state of your liver. So you re-sign the last transaction with a "final" nSequence of 0xFFFFFFFF i.e. the maximum possible value it can have. This allows the bartender to get his or her funds immediately (nLockTime is ignored if nSequence is 0xFFFFFFFF), so he or she tells the bouncers to let you out of the bar.
Now that of course is a payment channel. Individual payments (purchases of alcohol, so I guess buying coffee is not in scope for payment channels). Closing is done by creating a "final" transaction that is the sum of the individual payments. Sure there's no routing and channels are unidirectional and channels have a maximum lifetime but give Satoshi a break, he was also busy inventing Bitcoin at the time. Now if you noticed I called this kind of payment channel "broken". This is because the mempool rules are not consensus rules, and cannot be validated (nothing about the mempool can be validated onchain: I sigh every time somebody proposes "let's make block size dependent on mempool size", mempool state cannot be validated by onchain data). Fullnodes can't see all of the transactions you signed, and then validate that the final one with the maximum nSequence is the one that actually is used onchain. So you can do the below:
Become friends with Jihan Wu, because he owns >51% of the mining hashrate (he totally reorged Bitcoin to reverse the Binance hack right?).
Slip Jihan Wu some of the more interesting drinks you're ordering as an incentive to cooperate with you. So say you end up ordering 100 drinks, you split it with Jihan Wu and give him 50 of the drinks.
When the bar closes, Jihan Wu quickly calls his mining rig and tells them to mine the version of your transaction with nSequence 0. You know, that first one where you pay for only one drink.
Because fullnodes cannot validate nSequence, they'll accept even the nSequence=0 version and confirm it, immutably adding you paying for a single alcoholic drink to the blockchain.
The bartender, pissed at being cheated, takes out a shotgun from under the bar and shoots at you and Jihan Wu.
Jihan Wu uses his mystical chi powers (actually the combined exhaust from all of his mining rigs) to slow down the shotgun pellets, making them hit you as softly as petals drifting in the wind.
The bartender mutters some words, clothes ripping apart as he or she (hard to believe it could be a she but hey) turns into a bear, ready to maul you for cheating him or her of the payment for all the 100 drinks you ordered from him or her.
Steely-eyed, you stand in front of the bartender-turned-bear, daring him to touch you. You've watched Revenant, you know Leonardo di Caprio could survive a bear mauling, and if some posh actor can survive that, you know you can too. You make a pose. "Drunken troll logic attack!"
I think I got sidetracked here.
Bears are bad news.
You can't reasonably invoke "Satoshi's Vision" and simultaneously reject the Lightning Network because it's not onchain. Satoshi's Vision included a half-assed implementation of payment channels with nSequence, where the onchain transaction represented multiple logical payments, exactly what modern offchain techniques do (except modern offchain techniques actually work). nSequence (the field, but not its modern meaning) has been in Bitcoin since BitCoin For Windows Alpha 0.1.0. And its original intent was payment channels. You can't get nearer to Satoshi's Vision than being a field that Satoshi personally added to transactions on the very first public release of the BitCoin software, like srsly.
Miners can totally bypass mempool rules. In fact, the reason why nSequence has been repurposed to indicate "optional" replace-by-fee is because miners are already incentivized by the nSequence system to always follow replace-by-fee anyway. I mean, what do you think those drinks you passed to Jihan Wu are, other than the fee you pay him to mine a specific version of your transaction?
Satoshi made mistakes. The original design for nSequence is one of them. Today, we no longer use nSequence in this way. So diverging from Satoshi's original design is part and parcel of Bitcoin development, because over time, we learn new lessons that Satoshi never knew about. Satoshi was an important landmark in this technology. He will not be the last, or most important, that we will remember in the future: he will only be the first.
Incentive-compatible time-limited unidirectional channel; or, Satoshi's Vision, Fixed (if transaction malleability hadn't been a problem, that is). Now, we know the bartender will turn into a bear and maul you if you try to cheat the payment channel, and now that we've revealed you're good friends with Jihan Wu, the bartender will no longer accept a payment channel scheme that lets one you cooperate with a miner to cheat the bartender. Fortunately, Jeremy Spilman proposed a better way that would not let you cheat the bartender. First, you and the bartender perform this ritual:
You get some funds and create a transaction that pays to a 2-of-2 multisig between you and the bartender. You don't broadcast this yet: you just sign it and get its txid.
You create another transaction that spends the above transaction. This transaction (the "backoff") has an nLockTime equal to the closing time of the bar, plus one block. You sign it and give this backoff transaction (but not the above transaction) to the bartender.
The bartender signs the backoff and gives it back to you. It is now valid since it's spending a 2-of-2 of you and the bartender, and both of you have signed the backoff transaction.
Now you broadcast the first transaction onchain. You and the bartender wait for it to be deeply confirmed, then you can start ordering.
The above is probably vaguely familiar to LN users. It's the funding process of payment channels! The first transaction, the one that pays to a 2-of-2 multisig, is the funding transaction that backs the payment channel funds. So now you start ordering in this way:
For your first drink, you create a transaction spending the funding transaction output and sending the price of the drink to the bartender, with the rest returning to you.
You sign the transaction and pass it to the bartender, who serves your first drink.
For your succeeding drinks, you recreate the same transaction, adding the price of the new drink to the sum that goes to the bartender and reducing the money returned to you. You sign the transaction and give it to the bartender, who serves you your next drink.
At the end:
If the bar closing time is reached, the bartender signs the latest transaction, completing the needed 2-of-2 signatures and broadcasting this to the Bitcoin network. Since the backoff transaction is the closing time + 1, it can't get used at closing time.
If you decide you want to leave early because your liver is crying, you just tell the bartender to go ahead and close the channel (which the bartender can do at any time by just signing and broadcasting the latest transaction: the bartender won't do that because he or she is hoping you'll stay and drink more).
If you ended up just hanging around the bar and never ordering, then at closing time + 1 you broadcast the backoff transaction and get your funds back in full.
Now, even if you pass 50 drinks to Jihan Wu, you can't give him the first transaction (the one which pays for only one drink) and ask him to mine it: it's spending a 2-of-2 and the copy you have only contains your own signature. You need the bartender's signature to make it valid, but he or she sure as hell isn't going to cooperate in something that would lose him or her money, so a signature from the bartender validating old state where he or she gets paid less isn't going to happen. So, problem solved, right? Right? Okay, let's try it. So you get your funds, put them in a funding tx, get the backoff tx, confirm the funding tx... Once the funding transaction confirms deeply, the bartender laughs uproariously. He or she summons the bouncers, who surround you menacingly. "I'm refusing service to you," the bartender says. "Fine," you say. "I was leaving anyway;" You smirk. "I'll get back my money with the backoff transaction, and posting about your poor service on reddit so you get negative karma, so there!" "Not so fast," the bartender says. His or her voice chills your bones. It looks like your exploitation of the Satoshi nSequence payment channel is still fresh in his or her mind. "Look at the txid of the funding transaction that got confirmed." "What about it?" you ask nonchalantly, as you flip open your desktop computer and open a reputable blockchain explorer. What you see shocks you. "What the --- the txid is different! You--- you changed my signature?? But how? I put the only copy of my private key in a sealed envelope in a cast-iron box inside a safe buried in the Gobi desert protected by a clan of nomads who have dedicated their lives and their childrens' lives to keeping my private key safe in perpetuity!" "Didn't you know?" the bartender asks. "The components of the signature are just very large numbers. The sign of one of the signature components can be changed, from positive to negative, or negative to positive, and the signature will remain valid. Anyone can do that, even if they don't know the private key. But because Bitcoin includes the signatures in the transaction when it's generating the txid, this little change also changes the txid." He or she chuckles. "They say they'll fix it by separating the signatures from the transaction body. They're saying that these kinds of signature malleability won't affect transaction ids anymore after they do this, but I bet I can get my good friend Jihan Wu to delay this 'SepSig' plan for a good while yet. Friendly guy, this Jihan Wu, it turns out all I had to do was slip him 51 drinks and he was willing to mine a tx with the signature signs flipped." His or her grin widens. "I'm afraid your backoff transaction won't work anymore, since it spends a txid that is not existent and will never be confirmed. So here's the deal. You pay me 99% of the funds in the funding transaction, in exchange for me signing the transaction that spends with the txid that you see onchain. Refuse, and you lose 100% of the funds and every other HODLer, including me, benefits from the reduction in coin supply. Accept, and you get to keep 1%. I lose nothing if you refuse, so I won't care if you do, but consider the difference of getting zilch vs. getting 1% of your funds." His or her eyes glow. "GENUFLECT RIGHT NOW." Lesson learned?
Payback's a bitch.
Transaction malleability is a bitchier bitch. It's why we needed to fix the bug in SegWit. Sure, MtGox claimed they were attacked this way because someone kept messing with their transaction signatures and thus they lost track of where their funds went, but really, the bigger impetus for fixing transaction malleability was to support payment channels.
Yes, including the signatures in the hash that ultimately defines the txid was a mistake. Satoshi made a lot of those. So we're just reiterating the lesson "Satoshi was not an infinite being of infinite wisdom" here. Satoshi just gets a pass because of how awesome Bitcoin is.
CLTV-protected Spilman Channels
Using CLTV for the backoff branch. This variation is simply Spilman channels, but with the backoff transaction replaced with a backoff branch in the SCRIPT you pay to. It only became possible after OP_CHECKLOCKTIMEVERIFY (CLTV) was enabled in 2015. Now as we saw in the Spilman Channels discussion, transaction malleability means that any pre-signed offchain transaction can easily be invalidated by flipping the sign of the signature of the funding transaction while the funding transaction is not yet confirmed. This can be avoided by simply putting any special requirements into an explicit branch of the Bitcoin SCRIPT. Now, the backoff branch is supposed to create a maximum lifetime for the payment channel, and prior to the introduction of OP_CHECKLOCKTIMEVERIFY this could only be done by having a pre-signed nLockTime transaction. With CLTV, however, we can now make the branches explicit in the SCRIPT that the funding transaction pays to. Instead of paying to a 2-of-2 in order to set up the funding transaction, you pay to a SCRIPT which is basically "2-of-2, OR this singlesig after a specified lock time". With this, there is no backoff transaction that is pre-signed and which refers to a specific txid. Instead, you can create the backoff transaction later, using whatever txid the funding transaction ends up being confirmed under. Since the funding transaction is immutable once confirmed, it is no longer possible to change the txid afterwards.
Todd Micropayment Networks
The old hub-spoke model (that isn't how LN today actually works). One of the more direct predecessors of the Lightning Network was the hub-spoke model discussed by Peter Todd. In this model, instead of payers directly having channels to payees, payers and payees connect to a central hub server. This allows any payer to pay any payee, using the same channel for every payee on the hub. Similarly, this allows any payee to receive from any payer, using the same channel. Remember from the above Spilman example? When you open a channel to the bartender, you have to wait around for the funding tx to confirm. This will take an hour at best. Now consider that you have to make channels for everyone you want to pay to. That's not very scalable. So the Todd hub-spoke model has a central "clearing house" that transport money from payers to payees. The "Moonbeam" project takes this model. Of course, this reveals to the hub who the payer and payee are, and thus the hub can potentially censor transactions. Generally, though, it was considered that a hub would more efficiently censor by just not maintaining a channel with the payer or payee that it wants to censor (since the money it owned in the channel would just be locked uselessly if the hub won't process payments to/from the censored user). In any case, the ability of the central hub to monitor payments means that it can surveill the payer and payee, and then sell this private transactional data to third parties. This loss of privacy would be intolerable today. Peter Todd also proposed that there might be multiple hubs that could transport funds to each other on behalf of their users, providing somewhat better privacy. Another point of note is that at the time such networks were proposed, only unidirectional (Spilman) channels were available. Thus, while one could be a payer, or payee, you would have to use separate channels for your income versus for your spending. Worse, if you wanted to transfer money from your income channel to your spending channel, you had to close both and reshuffle the money between them, both onchain activities.
Poon-Dryja Lightning Network
Bidirectional two-participant channels. The Poon-Dryja channel mechanism has two important properties:
No time limit.
Both the original Satoshi and the two Spilman variants are unidirectional: there is a payer and a payee, and if the payee wants to do a refund, or wants to pay for a different service or product the payer is providing, then they can't use the same unidirectional channel. The Poon-Dryjam mechanism allows channels, however, to be bidirectional instead: you are not a payer or a payee on the channel, you can receive or send at any time as long as both you and the channel counterparty are online. Further, unlike either of the Spilman variants, there is no time limit for the lifetime of a channel. Instead, you can keep the channel open for as long as you want. Both properties, together, form a very powerful scaling property that I believe most people have not appreciated. With unidirectional channels, as mentioned before, if you both earn and spend over the same network of payment channels, you would have separate channels for earning and spending. You would then need to perform onchain operations to "reverse" the directions of your channels periodically. Secondly, since Spilman channels have a fixed lifetime, even if you never used either channel, you would have to periodically "refresh" it by closing it and reopening. With bidirectional, indefinite-lifetime channels, you may instead open some channels when you first begin managing your own money, then close them only after your lawyers have executed your last will and testament on how the money in your channels get divided up to your heirs: that's just two onchain transactions in your entire lifetime. That is the potentially very powerful scaling property that bidirectional, indefinite-lifetime channels allow. I won't discuss the transaction structure needed for Poon-Dryja bidirectional channels --- it's complicated and you can easily get explanations with cute graphics elsewhere. There is a weakness of Poon-Dryja that people tend to gloss over (because it was fixed very well by RustyReddit):
You have to store all the revocation keys of a channel. This implies you are storing 1 revocation key for every channel update, so if you perform millions of updates over your entire lifetime, you'd be storing several megabytes of keys, for only a single channel. RustyReddit fixed this by requiring that the revocation keys be generated from a "Seed" revocation key, and every key is just the application of SHA256 on that key, repeatedly. For example, suppose I tell you that my first revocation key is SHA256(SHA256(seed)). You can store that in O(1) space. Then for the next revocation, I tell you SHA256(seed). From SHA256(key), you yourself can compute SHA256(SHA256(seed)) (i.e. the previous revocation key). So you can remember just the most recent revocation key, and from there you'd be able to compute every previous revocation key. When you start a channel, you perform SHA256 on your seed for several million times, then use the result as the first revocation key, removing one layer of SHA256 for every revocation key you need to generate. RustyReddit not only came up with this, but also suggested an efficient O(log n) storage structure, the shachain, so that you can quickly look up any revocation key in the past in case of a breach. People no longer really talk about this O(n) revocation storage problem anymore because it was solved very very well by this mechanism.
Another thing I want to emphasize is that while the Lightning Network paper and many of the earlier presentations developed from the old Peter Todd hub-and-spoke model, the modern Lightning Network takes the logical conclusion of removing a strict separation between "hubs" and "spokes". Any node on the Lightning Network can very well work as a hub for any other node. Thus, while you might operate as "mostly a payer", "mostly a forwarding node", "mostly a payee", you still end up being at least partially a forwarding node ("hub") on the network, at least part of the time. This greatly reduces the problems of privacy inherent in having only a few hub nodes: forwarding nodes cannot get significantly useful data from the payments passing through them, because the distance between the payer and the payee can be so large that it would be likely that the ultimate payer and the ultimate payee could be anyone on the Lightning Network. Lessons learned?
We can decentralize if we try hard enough!
"Hubs bad" can be made "hubs good" if everybody is a hub.
Smart people can solve problems. It's kinda why they're smart.
After LN, there's also the Decker-Wattenhofer Duplex Micropayment Channels (DMC). This post is long enough as-is, LOL. But for now, it uses a novel "decrementing nSequence channel", using the new relative-timelock semantics of nSequence (not the broken one originally by Satoshi). It actually uses multiple such "decrementing nSequence" constructs, terminating in a pair of Spilman channels, one in both directions (thus "duplex"). Maybe I'll discuss it some other time. The realization that channel constructions could actually hold more channel constructions inside them (the way the Decker-Wattenhofer puts a pair of Spilman channels inside a series of "decrementing nSequence channels") lead to the further thought behind Burchert-Decker-Wattenhofer channel factories. Basically, you could host multiple two-participant channel constructs inside a larger multiparticipant "channel" construct (i.e. host multiple channels inside a factory). Further, we have the Decker-Russell-Osuntokun or "eltoo" construction. I'd argue that this is "nSequence done right". I'll write more about this later, because this post is long enough. Lessons learned?
Bitcoin offchain scaling is more powerful than you ever thought.
If you are planning to place assets into cryptographic types of cash like Bitcoin or Ether, in any case, you do not understand where to start, this Gemini exchange review will help you with choosing. Gemini Bitcoin Exchange Review 2020 You need yourself to be a productive advanced cash intermediary. By what technique will you become? To help you here's an exchange review, which will give every one of you the low down information required for a powerful enthusiasm for one of the most trusted in stages the Gemini Exchange. We should find all the more right currently review Gemini Review : About Gemini Exchange Twin kin developed Gemini Winklevoss in the year 2014. The Gemini exchange is arranged in New York. The Gemini crypto exchange is open in essentially all US states, similarly as UK, Canada, Puerto Rico, Singapore, South Korea, and Hong Kong. In 2016, Gemini transformed into the world's recently approved Ether exchange. It positions 82th greatest exchange on earth as showed by 24-hour volume on Coinmarketcap. While Gemini Bitcoin and Gemini Ethereum trading volumes are high, the exchange is endeavoring with all undertakings to fight with those stages offering a predominant piece of the cryptographic types of cash, for instance, Binance. Reinforced Currencies Gemini offers crypto to fiat portions and a BTC/ETH grandstand, which makes it a quick contender to any similarity to Coinbase, Bitstamp, and Kraken. At present, it is one of the most respected and ensure about exchanges open. This is in light of the fact that it has more features to help secure customers against developers. Also, it is one exchange for the CBOE Bitcoin future settlement. Gemini Mobile application is directly available, which is amazingly basic and versatile to use. How to use Gemini? https://preview.redd.it/qnowl19fwaj41.jpg?width=720&format=pjpg&auto=webp&s=1819eeac9d4c44681c0afe616d387b60a78f7c8e 1) Go to the official site and snap the "Register" tab on the upper right corner. Enter your name, email address, and mystery word for your own record. While affirming your email address, it is critical to : Affirm your email address and enter both your region and phone number, by then you can set up 2-Factor Authentication (2FA) which will be an additional layer of security to your record. Incorporate your monetary equalization. Starting at now, Gemini recognizes simply bank moves and wires, as a methodology for putting away holds. To check your record, move your organization ID proof. This will help you with executing and trade US Dollars. Moreover, it will help Gemini with as per the Bank Secrecy Act (BSA) and Anti Money Laundering (AML) rules. The affirmation time may run from a couple to a couple of days. Subsequent to completing of all the above strategies, you can use your record for financing. gemini crypto exchange 2) Deposit Currency In the Menu, click Transfer Funds, by then find a good pace Bank Transfer and Exchange. Enter the whole you have to store here. Moreover, note $500 consistently is the most extraordinary most extreme for Bank moves. 3) Trading Bitcoin and Ethereum As you store by methods for bank move, they are quickly available for trading. you can purchase by encountering the menu and picking your supported trading pair. For example, for Bitcoin BTC/USD similarly as Ethereum ETH/USD. In the wake of embeddings the expense and sum it will process your buy demand. There is another choice to trade by methods for the business community which has exhibit orders gave by various customers. After the fulfillment of your purchase, your record will be acknowledged with your Ethereum just as Bitcoin purchases. You can sell your computerized cash on the Gemini crypto exchange. Regardless of the way that you can't make a withdrawal until your bank move has been completely arranged. gemini sponsor organization 4)Trading Limits By and by, For most trade strategies, there are no limitations on trades. In any case, Automated Clearing House (ACH) moves have the greatest store most remote purpose of $500 day and $15,000 consistently for singular record holders. Associations have a state of restriction for making ACH stores of $10,000 consistently or $300,000 consistently. Gemini Marketplace There is a Gemini business focus that runs 24*7. Here, you can have indistinguishable number of solicitations from you wish to have, with a variety of trading choices. These include: Market Orders – With the present best open worth, the solicitations here starting dealing with quickly against resting orders. Purpose of repression Orders – The sum is filled at or better than a given expense. The sum which isn't dispatched lays on the solicitation book diligently until it is filled or dropped. Brief or Cancel (IOC) Limit Orders – The sum is filled at or better than a given expense. The sum which isn't filled rapidly is dropped and doesn't lay on the perpetual solicitation book. Maker or Cancel (MOC) Limit Orders – The sum lays on the solicitation book continually at a foreordained expense. Furthermore, the entire solicitation is dropped if there is any sum that can be filled immediately. All solicitations made on this stage are totally sponsored and fill in as a full hold exchange. In any case, there is no edge trading Gemini. Despite that, reliably the customer's record equality should have more balance than the exceptional excitement on demand books. Also, all open solicitations decline your available leveling until they are fulfilled or dropped Gemini Fees In the event that there ought to be an event of moves, Gemini crypto exchange has a low cost technique and stage customers can store Bitcoin, Ether, at freed from charges for both bank and wire moves. In any case, banks will charge a cost for the customers to wire money to their Gemini account. Withdrawals on the stage are free and all customers will have 30 free withdrawals for each calendar month. Any withdrawals more than this total will pull in costs comparable to the mining charges payable on either sort out. The costs are around 0.001 BTC or 100,000 Satoshi per trade on the Bitcoin Network and 0 GWei or 0 ETH per trade on the Ethereum Network. MakeTaker charges 0.25% is the trading costs for both sellers(makers) and buyers(takers). If it shows up at certain trade volumes, charges will be reduced. The maker charge is 0% for 30-day trading volumes that outperform 5,000 Bitcoin or 100,000 Ether. For a comparable trading entirety, the taker run after will bubble to 0.10%. Gemini uses dynamic maker and taker charge or reimbursement timetable, and sellers can get reimbursement on liquidity-creation trades. The particular entireties depend upon net trading volumes and the buy and sell extent over a multi day time allotment. The data are adjusted as expected and more information on charges can be found here. https://preview.redd.it/exgucn9gwaj41.png?width=225&format=png&auto=webp&s=34fc66d46df40444abcc9ac61308106b2e3f57c0 charges Concerning purchases, the base purchase whole for Bitcoin is 0.00001 BTC, or 1000 satoshis, for Ether, the base sum is 0 .001 ETH Security-at-Gemini Bitcoin Gemini Reviews, is a strong exchange that has a better than average reputation in everyone. The exchange goes about as a way into the universe of cryptographic cash trading. This may be in light of the fact that various customers first quit concerning purchasing Bitcoin and Ethereum. In comprehension to Coinbase, Gemini has a near space. Wherein it allows its customers to make trade clearly to and from their records. Gemini is a not too bad choice, for people looking to securely trade either Bitcoin or Ethereum. The exchange is a potential decision for new competitors to the market similarly as logically settled sellers who like to make trades by methods for their monetary adjusts. Latest News Dec 17, 2019: Well realized cash related pro association State Street picked Gemini exchange for the new propelled asset pilot adventure. Nov 19, 2019: Gemini exchange wanders into NFT's and acquired Nifty Gateway Solution, a phase to buy Non-Fungible Tokens. Nov 14, 2019: The exchange added Stop-Limit to the solicitations being executed on the stage. Sep 11, 2019: Gemini dispatches Gemini Custody with 18 cryptographic types of cash Sep 5, 2019: Gemini Clearing™, a totally electronic clearing and settlement answer for off-exchange exhibited by the stage Aud 27, 2019: Gemini Joins the Silvergate Exchange Network Aug 22, 2019: Gemini loosens up and reaches to Australia April 15, 2019: Gemini wallet support Segwit Gemini Bitcoin Exchange Review Rundown: How to Buy Bitcoins by means of Gemini Register a record at Gemini and check email code sent to you. Set up two-factor validation (2FA). Give checked ID as a major aspect of the confirmation procedure. Include ledger. Store cash by clicking "Move Funds", "Store into Exchange" and afterward picking the sort of bank move. Snap "Purchase" catch and round out the buy structure to get BTC. Is Gemini Safe? Gemini is extremely worried about its clients' wellbeing, in this manner it utilize three arrangements of security... MORE Gemini Comparison with Other Exchanget To exchange bitcoins you have to initially peruse and think about various BTC trades... MORE In Which Countries Is Gemini Available? You can arrange bitcoins through Gemini nearly in any nation, yet discover where you can't... MORE Guide: Buying BTCs at Gemini It is anything but difficult to purchase bitcoins on Gemini trade, knowing the essential standards and prerequisites... MORE FAQ Discover to what extent the exchange takes, how to pull back BTCs and what strategies for... MORE Practically equivalent to Bitcoin Exchanges We have arranged a rundown of trades, notwithstanding Gemini, that can assist you with requesting bitcoins... MORE With developing worth and system, bitcoin is ready to turn into the main online resource in the realm of ventures. Gemini bitcoin trade survey This article is worried about one of the most well known trades with regards to BTC exchange, Gemini. What Is Gemini? Gemini is one of the realized digital money trades that offer an assortment of exchange apparatuses for speculators that have some involvement with the business. The organization that claims the stage is enrolled as LLC in New York State, USA, offering USD to BTC and USD to ETH exchange trade. Purchase BTC at Gemini Propelled in 2015, Gemini offers two unmistakable commercial centers, them being: customary trade administrations; bitcoin barters. Upon its appearance, the stage offered its administrations in the US just, bit by bit including different nations all the while. The organization is possessed by the Winklevoss twins, who guarantee that they are have about 1% of the complete BTC volume. Winklevoss siblings are Gemini's proprietors Gemini Security With regards to the wellbeing of your assets, Gemini applies three arrangements of safety efforts that should be referenced. To start with, the stage applies advanced money safety efforts by offering hot and cold stockpiling wallets, where cold wallets have multisig capacities to forestall hacking endeavors at your equalizations. Gemini security The subsequent measure is identified with the exchange where the entirety of the exchanges at Gemini are led through pre-financed accounts, implying that merchants and purchasers can't post orders on the off chance that they don't have adequate BTC or fiat monetary forms in their parities. Finally, the site security comprises of two-factor verification (2FA) and HTTP encryption of all data in regards to merchants and stage's exchanges from outsiders. Accessible Payment Methods As of now, Gemini acknowledges stores communicated distinctly in ACH (for US dealers) and wire moves (for every other person) communicated in USD. Credit or check cards, money stores, PayPal and numerous different alternatives are wanted to be remembered for the future however are not accessible at the present time. Buy bitcoin by means of wire move You ought to buy in to the Gemini news source since the organization will promote the new store strategy through that channel of correspondence. Shouldn't something be said about Fees? While saving or pulling back your assets communicated in fiat or computerized monetary forms, dealers would find that the administrations are done totally free. Then again, Gemini charges exchange expenses are charged dependent on a month to month net exchange volume. Taker charges can extend from 0.15% to 0.25% while creator expenses from 0% to 0.25%. Expenses at the trade Does Gemini Have Limits? Cryptographic money and wire stores and withdrawals don't have any constraints forced on dealers, implying that in the event that you utilize the said administrations, you can buy, sell and pull back bitcoins with no deterrents. Singular American financial specialists utilizing ACH move, then again, have $500 every day and $15.000 month to month while institutional individuals have $10.000 day by day and $300.000 month to month store limits. No restrictions for purchasing bitcoin Gemini Comparison When thinking about exchanging at any trade, you should hope to analyze the administrations, expenses and impediments with other comparative stages. In this manner, we have assembled an examination investigation where we benchmarked Gemini against two other well known decisions with regards to BTC buy: Kraken and Coinbase. Gemini versus Kraken Kraken, much the same as Gemini, acknowledges bank moves just, with the significant contrast being that Kraken permits 5 fiat cash stores. Notwithstanding bitcoin, there are 14 more altcoins that you can exchange with at Kraken while the two trades force check on their customers as they are both controlled organizations. Gemini versus Kraken Kraken is fundamentally the same as Gemini as far as expenses, as creatotaker charges go somewhere in the range of 0% and 0.26%. Bank moves do accompany little expenses at Kraken while Gemini acknowledges stores for nothing. In conclusion, while Gemini exchanges two or three nations in particular, Kraken is all around accessible. Coinbase versus Gemini Coinbase is viewed as one of the biggest bitcoin suppliers on the planet, offering its administrations in 32 nations, USA notwithstanding. The installment strategies at Coinbase are PayPal, bank moves and credit/check cards, two more than Gemini. Request bitcoins by means of Coinbase trade Confirmation is an absolute necessity have at Coinbase, much like in Gemini while expenses are a ton lower at Gemini, as you pay between 1.49% to 3.49% from exchange's an incentive at Coinbase. The two trades offer BTC vaults and wallet administrations while Coinbase additionally exchanges with Litecoin which are inaccessible at Gemini. Gemini BTC Exchange in Different Countries Gemini's administrations are accessible in a bunch of nations around the globe, them being the US (5 states not upheld), Canada, Japan, South Korea, Hong Kong, Singapore and the United Kingdom. The five US expresses that are not bolstered are Alaska, Arizona, Hawaii, Oregon and Wisconsin. Gemini trade in various nations Is It Legal? Gemini is an American LLC that adheres to New York Banking Law guidelines, actualizing BSA (Bank Secrecy Act) and AML (Anti-Money Laundry Compliance Program) arrangements, implying that customary reviews of the BSA/AML programs are being executed. Moreover, the firm requires all merchants to have reserves pre-saved before the exchange. Bitcoin Gemini Price, is legitimate Another significant factor of the stage's lawfulness is the way that since its beginning, Gemini has promptly accessible money related report dating 7 years back. Does Gemini Support Its Customers? Concerning the client service, Gemini has a thorough FAQ page where a large portion of the exchanging questions have been replied. Notwithstanding the FAQ, you can likewise top off a shape and present a solicitation to the Gemini group with respect to any issue that you may look on the stage. Gemini client service Because of the regular upkeep of the site's administrations, Gemini has a "Status" page where financial specialists can see which administrations and API instruments are working right now and which are definitely not. Manual for Buy Bitcoins from Gemini When you have gotten the cash at your Gemini account, click "Purchase" button on the dashboard page. Buy page for bitcoins at Gemini Presently, round out the structure on the right, giving request type, volume or estimation of BTC you wish to get and click "Purchase" to get bitcoins in your record immediately. Try to check the BTC cost at the upper left piece of the "Purchase" page to ensure it has not changed at the time you have begun the buy procedure. Enrollment It is totally allowed to enroll a record at Gemini bitcoin trade and the procedure begins once you click "Register" button at the upper right corner of the site. Give your complete name, email address and secret key in subsequent stage and snap "Make My Account". Make account at Gemini You will get an email code which you should duplicate glue into the Gemini's check page. Contribution of enactment code on Bitcoin Gemini Registration The accompanying advances will open up for you to finish, in this way you have to arrangement your 2FA security apparatus, include a financial balance and give checked ID to finish the enrollment methodology. To what extent Should I Wait for Verification? Check stage can take between an hour and a day, contingent upon various enlistment applications Gemini has right now you have begun the procedure. You ought to set up every single essential report before you start and arm yourself with persistence as a stage would set aside effort to process your data. Confirmation process at Gemini Would you be able to Get Bitcoins Without Verification? At the enlistment page, you are required to check your personality and frog your financial balance. When you have presented the records, you can't enter the stage's exchange page until the help affirms your subtleties. In this way, it is unimaginable to expect to buy supply of bitcoins without confirmation. Obligatory confirmation before purchasing BTCs at Gemini How to Add Money to Account? When you have finished the enrollment and confirmation of your record, click button "Move Funds", situated in the top segment of your dashboard page. In following stage, click "Store Into Exchange" and pick either USD or Wire alternative, contingent upon what financial balance you have included at enrollment stage. Add assets to Gemini account You can likewise store bitcoins in your Gemini wallet too. Store BTCs in the Gemini wallet At the last phase of wire move subsidizing process, you have to give bank's wiring data, for example, your record number and other significant data that can be found by clicking "Bank Settings". Give bank's wiring data When data has been given, basically click "Store" button which will show up at the base of the page. Secure Your Account Keep the entirety of your record and wallet passwords out of the programmer's compass by continually evolving them. Monitor the new secret key by keeping in touch with them down on a bit of paper as to not overlook them meanwhile. Record with 2FA on trade You as of now have 2FA from the enlistment stage and don't give your private data to some other dealer on the stage. FAQ To what extent Does It Take to Make Transaction? It takes 4 to 5 days to store assets in your Gemini account while exchanges themselves are done following you the exchange started. Diverse request types have distinctive length, contingent upon what dealer wishes to accomplish. Sitting tight for exchanges on the trade Would i be able to Buy Bitcoin with PayPal at Gemini? Now, brokers can't utilize PayPal as store technique at Gemini. You ought to buy in to the trade's news channel as to get warnings if the strategy opens up to store alternative later on. Does Gemini Have a BTC Wallet? The stage offers two kinds of wallet administrations, one being "hot" wallet and another being vault stockpiling. Both are based just, with the principle contrast being that vault stockpiling gives extra security keys that are utilized while moving bitcoins all through the wallet. Along these lines, vault administrations are esteemed as more secure than the standard BTC wallet. Gemini wallet Pulling back Your Bitcoins from Gemini At the dashboard page, click "Move Funds" and afterward "Pull back From Exchange" to begin the procedure. Pick bitcoins to continue towards the withdrawal structure. Determine the measure of BTC you with to escape the trade and give your wallet address. Snap "Survey Withdrawal" and check the data. When you are fulfilled, click "Affirm" to end the procedure. Your coins will show up inside 24 hours to your ideal area. Pull back BTC from Gemini Instructions to Order BTC with Credit/Debit Card at Gemini As with PayPal, it is preposterous to expect to buy bitcoins with the assistance of credit or charge cards at Gemini, since the choice isn't accessible right now. Stay aware of trade's news and declarations as the CC/DC choice may open up later on. Gemini Mobile App Portable stages are yet to be created by Gemini, implying that exchange is accessible on perusing stage as it were. Watch out for the declaration, as the organization may make the push towards telephone exchange not so distant future. Purchase BTC just on Gemini perusing stage Gemini Analogs Aside from Gemini, we at BitcoinBestBuy have checked on numerous different stages that can assist you with getting bitcoins effectively and securely. They all change regarding local accessibility, expenses, buy strategies and confirmation necessities, so make a point to check different articles also. Get BTC at digital money stages Coinbase Exchange Review Being one of the biggest BTC exchanging stages the world, we made a survey of their charges, store choices and other important data with respect to the trade. We have likewise given bit by bit controls on the best way to buy and pull back assets and coins from Coinbase. Coinbase survey Full Review Coinbase Bitcoin Gemini Exchange Find out About Kraken Kraken is another trade that offers bitcoins through bank moves and its administrations are all inclusive accessible. We made a survey of Kraken's advantages and disadvantages, giving our customers a diagram of the trade as far as expenses the organization charges, check prerequisites and buy procedures of the stage. https://www.cryptoerapro.com/bitcoin-gemini/ http://www.cryptoerapro.com/ https://twitter.com/cryptoerapro https://www.instagram.com/cryptoerapro/ https://www.pinterest.co.uk/cryptoerapro/ https://www.facebook.com/cryptoerapro https://www.facebook.com/pg/bitcoingeminibot https://www.facebook.com/events/282310836080639/
Example #3: Bitcoin Core Client (import only) This section shows how to use Bitcoin Core to import a paper wallet private key. Open the Bitcoin Core client application in Mac (steps will be the same for Windows Bitcoin Core client). Ensure that the client is fully synced with the Bitcoin blockchain. It can take up to a few days to sync the ... Excerpt from Satoshi’s Bitcoin white paper published on Oct. 31, 2008. At the end of the paper, Nakamoto uses the term “we,” and stresses that the paper is a proposal that describes a system ... 11 Years For Bitcoin’s White Paper. The official white paper was released by the yet anonymous individual or group of individuals known as Satoshi Nakamoto.. The white paper described a peer-to-peer version of electronic cash that would allow online payments to be sent directly from one party to another. One analyst points to funding rates on Binance as a reliable sentiment indicator, noting that he is expecting upside. Bitcoin Trades Around $13,000 as Momentum Stalls At the time of writing, Bitcoin is trading down just under 1% at its current price of $13,150. This is around where it has been trading throughout the past 24-hours. Satoshi Nakamoto’s Bitcoin White Paper: A 12-Year Old Summary of Robust Unstructured Simplicity. Cryptocurrency supporters all around the world are celebrating the fact that today is the 12th ... Binance to Launch Bitcoin-Pegged Token on Its Own Blockchain Binance will issue a number of tokens pegged to leading cryptocurrencies on Binance Chain to boost the number of trading options on its ... Binance Uganda was the first fiat-to-crypto platform launched by Binance in June 2018 to allow users in Uganda to access cryptocurrencies with UGX and spearhead greater services throughout Africa. With Binance.com offering a greater number of services with UGX, Binance Uganda will close its operations on November 28, 2020 to centralize its services for Ugandans users on one platform. But to buy a few satoshis, you don't need to read Satoshi's bitcoin white paper. Teenagers understand the concept of storing value, so it's worth going beyond just the peer-to-peer transactions. "Bitcoin is digital currency operating via the internet on a digital ledger called the blockchain. There's no business, government, or organization controlling or issuing bitcoin, and it runs on ... Doch wegen des Diebstahls von 7.000 Bitcoin eine Reorganisation der Blockchain anzuordnen, kann und darf nicht angehen. Denn damit wäre der Grundgedanke hinter Bitcoin korrumpiert und die Idee, die Satoshi Nakamoto vor zehn Jahren in seinem White Paper an die Öffentlichkeit brachte, ad absurdum geführt. Denn aufgrund des technischen ... Bitcoin (BTC) Nedir? Bitcoin, dağıtılmış bilgisayar ağı üzerinde çalışmakta olan bir dijital para türüdür. Yaratılan ilk kripto para olan Bitcoin, Satoshi Nakamoto takma adını kullanan bir kişi tarafından 2008 yılında yayınlanan bir white paper ile kavramsallaştırılmıştır. 3 Ocak 2009'da yaratılmasının üzerinden geçen on yıldan fazla sürenin ardından Bitcoin ...
Binance para iniciantes / Saques e Depósitos (Bitcoin ...
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