Vitalik Buterin, Founder Of Ethereum, Addresses The First Ever Blockchain India Summit, Powered By Cryptocarbon (ccrb).
Vitalik Buterin, founder of Ethereum, addresses the first ever BlockChain India Summit, powered by CryptoCarbon (CCRB). Vitalik Buterin,founder and inventor of Ethereum, the worlds first distributed ledger technology platform to take the technology behind bitcoin mainstream and applicable to almost every industry,arrived in India on the 6th December 2016 in order to address the first everBlockchain India Summit, which was sponsored byCryptoCarbon (CCRB). Vitalik addressed an excited crowd at the summit, that took place at the Shangri La Hotel, which was comprised of 150 tech enthusiasts from the likes of Microsoft, Wipro, ConsenSys, TCS, Accenture, Synechron, the National Payments Corporation of India, and several of the world's major bitcoin and blockchain startups. During the speech, he advocated blockchain technologys transformative potential to make smart contracts possible in fields such as agricultural markets, education, healthcare, identity-based transactions, microfinance and financial inclusion."I am excited to see the growing interest in Ethereum and blockchain technologies coming from India; the world is finally waking up to the great potential that the technology has, particularly in emerging markets, and I look forward to seeing developments with the technology grow in the months and years to come, he stated. The first ever Blockchain India Summit is timely as it coincides with the ruling BJPs recent currency-ban fiasco, and illuminates the power of decentralised person-to-person platforms like bitcoin and blockchain, to sidestep the tradition of issuance and supply-control mechanics of fiat currency, and to counter the authoritative control of central banks and governments. Ms. Arifa Khan, the conference chair, welcomed Vitalik Buterin to India for the f Continue reading >>
Gdax | Ethereum Faqs
Ethereum is a decentralized platform that runs smart contracts: applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third party interference. Ethereum uses a public blockchain similar to bitcoin, but also enables advanced programmable transactions types. Ether (ETH) is the primary currency on the Ethereum network. Much like bitcoin (BTC), it is created by computerized mining. Ether can be sent from one address on the Ethereum network to another, and can also be used in other transactions called "Smart contracts. Ethereum was proposed by Vitalik Buterin in a white paper . Since then many people have contributed work to the project. GDAX provides order books for both ETH/BTC and ETH/USD. You can create an account on GDAX to buy and sell ether with bitcoin, or US dollars. Bitcoin was conceived as a "apurely peer-to-peer version of electronic cash,"focusing on payments, and value transfer as its primary applications. Ethereum extends the ideas bitcoin is built on in order to provide a more generalized computational platform. This enables the creation of smart contracts, decentralized applications, and even decentralized governance applications. No. Bitcoin and Ethereum are separate protocols, and it is not possible to complete a transaction from one to the other. However, you can buy and sell ether and bitcoin separately. What happens if I send my ether to the wrong address? Dont do this. Unfortunately if you send ether to an incorrect address, it may be lost forever. Ethereum network addresses do not have the safety measures, so it is possible to lose ether if you enter an address incorrectly. Bitcoin addresses have built-in verification to prevent errors like this. A smart contract is an executable program stored on the E Continue reading >>
How Many Possibly Bitcoin Addresses Are There Exactly? And How Long Does It...
How many possibly bitcoin addresses are there exactly? And how long does it... How many possibly bitcoin addresses are there exactly? A fast setup could do thousands each second. Play Bitcoin Poker at sealswithclubs.eu. We're active and open to everyone. And if you're thinking what I think you're thinking, remember that you don't actually have to find their private key to claim someone else's bitcoins. All you have to do is find any one of the roughly 2^96 private keys whose corresponding public key hashes to that address. I am an employee of Ripple. Follow me on Twitter @JoelKatz 1Joe1Katzci1rFcsr9HH7SLuHVnDy2aihZ BM-NBM3FRExVJSJJamV9ccgyWvQfratUHgN There are exactly 2^160 possible addresses as long as we keep using RIPE-MD160. 2^160 is 1,461,501,637,330,902,918,203,684,832,716,283,019,655,932,542,976. To put that in perspective, there are only 2^63 grains of sand on all of the beaches of the Earth ( ) Before you run out and build an RPC program to generate addresses, do some math first. Or read this: The total pool of Bitcoin addresses in use is so minuscule compared to the total population of addresses you *could* create, that the odds of you creating a private key for an address that is already in use is so small (near zero), that you'd be better off just writing malware to infect computers and just steal them. If you like what I've written here, consider tipping the messenger: A more profitable way to make money from generating random numbers would be the state lottery. Quote from: JoelKatz on June 29, 2011, 03:21:07 PM And if you're thinking what I think you're thinking, remember that you don't actually have to find their private key to claim someone else's bitcoins. All you have to do is find any one of the roughly 2^96 private keys whose corresponding public ke Continue reading >>
Receiving Ether To Your Blockchain Wallet
Receiving ether to your Blockchain wallet To receive ether, the sender needs your ether address. This is a different looking address from abitcoin address. Simply click on Ether in the left menu to access your ether dashboard. Once there, click on Request to find your ether address. Copy the address and share it with the sender. The Blockchain wallet generates oneethereum address that can be reused an unlimited number of times. All sent and received transactions will appear within the Ether section of the wallet once ethereum transactions take place. Balances in bitcoin and ethereum are displayed in the upper right corner. Continue reading >>
Wallet, Accounts And Addresses
Innovating Bitcoin since 2013. Creators of the first bitcoin mining pool (Slush Pool), TREZOR, the #1 and most secure bitcoin wallet and Coinmap.org. In this article, we explain the basic terms that are used in TREZOR and other cryptocurrency wallets. Understanding them will help you better understand how TREZOR works. Last time, we looked at what Seed, PIN and Passphrases are, explaining what roles do these three tools play when it comes to the security of your cryptocurrencies. If you need to refresh your memories, follow the link below. Some of the todays terms will be easier to understand if you have read the previous article. In this article, we explain the basic terms that are used in TREZOR and other cryptocurrency wallets. Understandingblog.trezor.io This is probably one of the most used terms you will see in the cryptocurrency world. While it may seem quite straight-forward, confusion can arise when the term is used in a wrong context. Lets have a closer look at what do we mean by the word wallet. Compare the TREZOR with your wallet that you carry with you on a daily basis. In the wallet, you probably have debit cards to different bank accounts, credit cards, personal documents, fiat bills, maybe even for different currencies. The wallet in your TREZOR is similar there are separate pouches for different currencies: one for Bitcoin, one for Ethereum, but also for your U2F identity, etc. Everything you need is in one wallet. Does it not sound like something familiar? Like the Recovery Seed? Exactly! Each seed generates only one wallet. Your TREZOR is the key to this wallet. Therefore, under normal circumstances*, you have exactly one wallet in your TREZOR. This wallet is further subdivided into currency-specific wallets, such as Bitcoin wallet, Ethereum wallet ( Continue reading >>
What Is Ether?
Ether is a necessary element a fuel for operating the distributed application platform Ethereum. It is a form of payment made by the clients of the platform to the machines executing the requested operations. To put it another way, ether is the incentive ensuring that developers write quality applications (wasteful code costs more), and that the network remains healthy (people are compensated for their contributed resources). If you just want to test the technology, you probably don't need real ether. Download the latest Wallet app and switch to the Test Network Check your ether presale balance safely here: The total supply of ether and its rate of issuance was decided by the donations gathered on the 2014 presale. The results were roughly: 60 million ether created to contributors of the presale 12 Million (20% of the above) were created to the development fund, most of it going to early contributors and developers and the remaining to the Ethereum Foundation 5 ethers are created every block (roughly 15 seconds) to the miner of the block 2-3 ethers are sometimes sent to another miner if they were also able to find a solution but his block wasn't included (called uncle/aunt reward) Note that after the Byzantium update is implemented, the mining and uncle reward is reduced to 3 ethers and 0.625-2.625 ethers, respectively. No. According to the terms agreed by all parties on the 2014 presale, issuance of ether is capped at 18 million ether per year (this number equals 25% of the initial supply). This means that while the absolute issuance is fixed, the relative inflation is decreased every year. In theory if this issuance was kept indefinitely then at some point the rate of new tokens created every year would reach the average amount lost yearly (by misuse, accidental key Continue reading >>
How Ethereum's Wallets Are Evolving - Coindesk
Benedict Chan is platform lead at blockchain security firm BitGo and an advocate of bitcoin and ethereum blockchain technologies. He has designed and developed APIs and SDKs used behind a number of bitcoin multi-signature wallet implementations. Here, Chanlooks at the differences between ethereum multisig wallets and their bitcoin counterparts, as well as delving into their inner workings. Wallets are one of most basic applications on any blockchain platform. They provide the interface for users to interact with the blockchain. Some wallets, such as the one offered by Bitcoin Core, connect to the blockchain directly via a full node, while others depend on web services to provide access. At the basic level, a wallet seeks to serve users by receiving, sending, monitoring and listing transactions within a cryptocurrency. More advanced wallets enable users to gain better security or perform an extended set of actions on the blockchain, thus increasing theirworth. This is particularly true in the case of the ethereum blockchain, where users need not only store value, but also perform various activities viacontracts. Since their introduction in 2013, bitcoin multi-signature (multisig) wallets have been used to provide user redundancy and security when handling funds on the blockchain. Multi-signature accounts require that multiple keys mustbesigned to move a token, like a physical vault where more than one key is required for contents to be accessed. Multisig makes it more difficult for attackers to steal from awallet, since the keys can be put on separate machines. With this additional security, users can have peace of mind when storing and using coins, or set up wallet structures where multiple users and approvals are required for transfers. The potential of ethereums bloc Continue reading >>
Should I Keep My Eth / Tokens On Single Or Multiple Addresses?
Home Addresses Should I Keep My ETH / Tokens on Single or Multiple Addresses? Should I Keep My ETH / Tokens on Single or Multiple Addresses? MyEtherWallet is a front end interface that enables you to interact directly with the Ethereum blockchain. Any Ethereum address can receive and store Ethereum-based tokens ("ERC-20" tokens). MEW enables you, through the interface, to send tokens from your address, view your token balance, etc. However, MyEtherWallet's existence has no bearing on your address's ability to receive tokens. Whether you store all your ETH and tokens in the same address is up to you. Some people prefer to have different wallets. Some people have a smaller "hot" wallet that is kept on their computer with small amounts of the coins they hold while keeping a majority of their funds in a cold-storage wallet. The only thing to keep in mind is that in order to send tokens you must also have a small amount (<0.1 ETH) in your account to cover the cost of gas. For this reason, it can be quite inefficient and frustrating to have all your tokens in different addresses. At the end of the day, it's up to you though. Continue reading >>
What Are Addresses On Blockchains? Blockchain Address 101
Blockchain Address 101. Blockchain Addresses are an important concept in cryptocurrencies and blockchains . In our guide, we explain. What addresses are, how they are created and what the differences between different kind of addresses on different blockchains are. What Are Addresses on Blockchains? Blockchain Address 101 In the early days of Bitcoin , it was possible to send payments to an IP-address like 18.104.22.168 (which is blockgeeks.com). This was planned to be a convenient method to use Bitcoins without dealing with unhandy public keys and addresses. However, after the Bitcoin developers realized that this way of sending coins could be subject to serious man- in-the-middle-attacks, the option was disabled and did never come back. This anecdote of Bitcoins early days seems to have mostly historic values. But it demonstrates what an address is: It is not something special or something set in stone. It is just a placeholder to accept and send blockchain transactions. Like an IBAN or SWIFT address. The address itself doesnt matter, nor does its format. The only thing matters are that the address serves its purpose to enable payments to an entity which has a unique information. Usually, a private key, to exclusively access the funds. The address is nothing but a secure identifier. However, while SWIFT or IBAN numbers are assigned by central authorities like banks, blockchain addresses exist. Every blockchain address possible already existed, long before a wallet found it. The reason is that blockchain addresses are the result of a mathematical operation. The Public Key: Where the Blockchain Address Generation begins After Pay to IP had been abandoned in Bitcoin , P2PKH became the new standard format for Bitcoin addresses. You might know it; it looks like this: A st Continue reading >>
Max Number Of Ethereum Addresses?
Hello everyone. I have been thinking about a solution for crypto tipping on a mass scale and my solution needs the ability to create ethereum addresses that will hold very small amounts of ethereum and the addresses have a high probability of being disposable. Think a homeless person having tips in multiple ethereum addresses but never accessing/using the addresses except to cash out. IPV4 ultimately will/or has run out of addresses. Does Ethereum has a max supply of addresses? Is there a better way using some sort of ethereum technology to create burnable addresses? Ie addresses that hold funds once and once the funds are used/transferred out of the account the private and public key association gets burned/distroyed allowing for a new private key to be used? On the topic of tipping, the problem with using Ethereum for that is that even though ethereum transaction fees are low, they are still there. So until some new feature comes out, its not going to make much sense to do it with eth. On the other hand there are things like IOTA that have no transaction cost, but probably less useful. If you talk about the max number of addresses, that number is huge and practically infinite given that the values are alpha numeric. @Jepb100 With IOTA you can send micro payments as there are no transaction fees, its fast, scalable, gets faster with more network use (unlike blockchain) Ive set up a meet up group to discuss how to help a local a charity and local business with IOTA DLT, feel free to sign up and join in the conversation even if you cant make a local meeting, we need people like yourself who want to help humanity with DSL (as opposed to just making money with awesome business ideas) we need both but Im focusing on helping mankind first Continue reading >>
How Are Ethereum Addresses Generated?
What criteria does a valid ethereum address need to fulfil? Is it just a random number in hexadecimal? Or does it need to be derived in a specific way, according to some cryptographic algorithm? What algorithms and standards are used to generate the keypair? I don't agree about the duplicate. Question is not about verifying if the address is valid but rather how the address is built and if it follows a format or is just random. Indeed it's not random but the result of some processes. The fact that the word "valid" is in the question is not a criteria, you won't mark all questions with the "valid" word as duplicates ! Nicolas Massart May 3 '16 at 15:38 @tayvano I'm not the one who asked this question Nicolas Massart May 4 '16 at 5:55 It's totally fine that questions get edited/improved and voted for reopening. Here we go. 5chdn May 4 '16 at 11:51 There are three main steps to get from private -> address: Create a random private key (64 (hex) characters / 256 bits / 32 bytes) Derive the public key from this private key (128 (hex) characters / 512 bits / 64 bytes) Derive the address from this public key. (40 (hex) characters / 160 bits / 20 bytes) Even though a lot of people call the address the public key, it's actually not the case in Ethereum. There is a separate public key that acts as a middleman that you won't ever see, unless you go poking around a pre-sale wallet JSON file. The private key is 64 hexadecimal characters. Every single string of 64 hex are, hypothetically, an Ethereum private key (see link at top for why this isn't totally accurate) that will access an account. If you plan on generating a new account, you should be sure these are seeded with a proper RNG. Once you have that string.. This is hard and beyond me. There is something with Elliptic Curve Di Continue reading >>
Account - How To Get Ethereum Addresses With Balance - Stack Overflow
How to get Ethereum addresses with balance You can dump blockchain state into a json file and see balance per address here. If you need just balances, and don't want to read huge json file, you can postprocess it with jq . This could take time, like hour or maybe more, but still possible: geth dump 4400000 > accounts.jsoncat accounts.json | jq '.accounts as $acc | $acc | keys | ["0x"+., $acc[.].balance] | join(",")' > balances.txt If you want to find accounts with top balance: cat balances.txt | sort --field-separator=',' --key=2 -n -r > balances-sorted.txt Thank you for your solution, but unfortunately, I got this error: Fatal: could not create new state: missing trie node fa220efdfa9f27c2b2f9a3803920a9f3e425e6a28a5527967b3e2071478bd893 (path ) I redownload the blockchain several times, and it did not help. Fade to Grey Oct 27 at 19:08 It seems you database is corrupted, and at this case db dump can't work of course. I suggest to redownload it, but using a full sync mode, without --fast option. Igor Artamonov Oct 30 at 13:28 Thanks. Always the same result - Fatal: could not create new state: missing trie node fa220efdfa9f27c2b2f9a3803920a9f3e425e6a28a5527967b3e2071478bd893 (path ) And yes, I do not use fast synchronization. Also, i tried to use more cache (1024/2048). Fade to Grey Oct 31 at 11:20 You need to submit a bug report to geth github repo PS you have a very fast server, on a standard server it takes a week to synchronize in non-fast mode Igor Artamonov Oct 31 at 12:08 Thanks, I'll try to do it. I just used Mac Pro 2013 - 12c/24t, 64GB Ram =) Fade to Grey Oct 31 at 20:00 Continue reading >>
How To Generate Many Ethereum Addresses From A Single Ethereum Wallet ??
How to generate many ethereum addresses from a single ethereum wallet ?? As in bitcoins...wallets like electrum or even online wallets like blockchain...we can generate thousands of addresses which belong to a single wallet... But in ethereum in myetherwallet i see only one address belong to my wallet and no option to generate another address.. Wow what a good advice you have given ..... I know that man...see what i am asking...if you dont know then ignore it It is impossible, only one account in ethereum address can generate only one address, if you want another wallet, then just simply make another one. There are exchangers though that could generate many addresses in just one account, for example is in HITBTC, if you wanted many ethereum addresses then go there and make an account, problem solved. Quote from: Lordshiva on October 20, 2017, 05:04:15 AM As in bitcoins...wallets like electrum or even online wallets like blockchain...we can generate thousands of addresses which belong to a single wallet... But in ethereum in myetherwallet i see only one address belong to my wallet and no option to generate another address.. First of all this question should be asked in the Altcoin's discussion board since ETH is an altcoin. Upto how much I know, it is not possible to create multiple address pointing to the same account in Ethereum but it is possible to create multiple accounts. People actually prefer to create multiple accounts for security reasons. I have found another thread of same question which is quite old which you may refer at : Continue reading >>
How To Manage Ethereum Multiple Addresses / Multiple Accounts ?
How to manage Ethereum multiple addresses / multiple accounts ? Ledger Wallet Ethereum doesn't manage multiple addresses and multiple accounts. If you want to manage several accounts you need to useMyEtherWalletwith your Nano S or your Blue instead of the Ledger Wallet Ethereum Chrome application following this tutorial . Your private data will still be hold and secured inside the Secure element of your device, but the interface to manage your account will be MyEtherWallet. If you ever use the Ledger Wallet Ethereum Chrome application to manage the wallet where you set multiple accounts, the application will only display the operations and the balance or your first address, even if the other addresses and accounts are still visible on MyEtherWallet. To use your Ledger device with the Ledger Wallet Chrome application, make sure that the "browser support" setting is disabled (NO). To use your Ledger device with MyEtherWallet, make sure that the "browser support" setting is enabled (YES). Continue reading >>
Ethereum Address Is Not Formatted Properly
Ethereum address is not formatted properly When inputting a receive address, or when scanning a QR code, into the Exodus Ethereum (ETH), Ethereum Classic (ETC), or any Ethereum-based token "Send " input area: Warning! The address is not formatted properly. Please double-check each character in the address. If you send to a wrong address, your funds cannot be recovered! Ethereum addresses have a mixture of upper and lower case letters, and they are case sensitive! For example, here is a valid receive address for ETH: 0x507877C2E26f1387432D067D2DaAfa7d0420d90a.If you were to alter one of the letters in the middle, 0x507877C2E26f1387432E067D2DaAfa7d0420d90a('E067' instead of 'D067'), Exodus will catch this and not allow it to pass. The reason is because we internally run what's called a "checksum" on the address itself to verify the internal integrityof the address. Exodus will not allow addresses which fail the checksum to pass. However, if you were to change the case of the address, for example, like so: 0x507877c2e26f1387432d067d2daafa7d0420d90a(all lower case letters), it would technically still be the same address. However, the checksumming is completely defeated and there is no way Exodus can tell if the address is good or not. The above address will work; however, this address,0x507877c2e26f1387432e067d2daafa7d0420d90a(altered so that the 'd067' is now 'e067'), would only appear to work. Exodus used to allow the altered, lowercase address to go through, but your funds would go nowhere and be lost forever. What Exodus now has is the ability to test the address and make sure it is "mixed case."This allows you, the user, to be certain the address is being checked for correctness, and will prevent you from accidentally sending funds to a malformed address and losing th Continue reading >>