What is Cryptocurrency Mining?
Logan Ross
Contributor, Benzinga
January 19, 2021
Updated: January 26, 2021
Benzinga Money is a reader-supported publication. We may earn a commission when you click on links in this article. Learn more.
Want to jump straight to the answer? The best crypto platform for most people is definitely eToro.
You may have heard the term mining in relation to Bitcoin or cryptocurrency in general – but it isn’t quite obvious what it means in that context.
Mining in the crypto world is the process of keeping blockchain data in check. It involves hard work (done by computers) and results in a slow accumulation of resources – just like mining for minerals.
Anyone can become a miner, but mining is not for everyone. Over 70% of Bitcoin mining happens in China, where dirt cheap electricity makes running mining computers extremely profitable.
Should you become a miner? Or is there a better way to make money from mining?
Why Mine Cryptocurrency?
Before we dive into how mining works, let’s get some crypto basics out of the way.
The 1st important thing to keep in mind is that cryptocurrency transactions are recorded on a blockchain. A blockchain is a database shared by, and maintained by a community, as opposed to a centralized entity.
Blockchain. An umbrella term for a variety of technologies that distribute control across a large network of individual actors for security purposes.
Decentralized. Anything that is not controlled by a single, central entity or group.
Mining is the term used for the process of validating and recording new transactions on a blockchain.
What’s the Incentive?
Validating and recording all the new transactions that come across the network is not an easy task. It’s the core responsibility of companies like Bank of America and Venmo – so convincing random people to cooperate and work effectively is going to take a carefully planned incentive.
The rules of any successful decentralized system must be created in such a way that it is in the best interest of random people around the world to help maintain it.
Satoshi Nakamoto incentivized people to maintain Bitcoin’s blockchain by rewarding them with newly-minted Bitcoin. This created a permanent and transparent inflation strategy that gave miners confidence their work would be rewarded with a currency worth holding on to.
Who Mines Cryptocurrency?
Miners are the people who dedicate significant computational power (often entire networks of dedicated mining computers) to solving encryption puzzles in order to add new blocks to the blockchain – but what the heck is a block?
Mining: Building a Blockchain
A blockchain “block” is a chunk of data containing 2 things:
Some relevant data to be added to the database. (For example, all the bitcoin transactions that occurred within the last 10 minutes.)
The ID of the block before it in the chain.
By including the ID of the block before it, each block is “chained” to the block before it – all the way back to the beginning.
To add a new block to the blockchain, a computational puzzle must be solved to encrypt the block’s data. Mining is the act of solving this puzzle.
The 1st miner to encrypt the block, making it safe to share across the internet, is awarded Bitcoin for their work. The winner shares their results with all the other miners, who verify the encryption is safe and the work is done. This is called “proof of work.”
Once verified by the other miners, the winner securely adds the new block to the existing chain.
The Halvening
You many have heard of the Bitcoin “halvening”. Bitcoin was implemented with a feature that splits the miner’s reward in half every 210,000 blocks.
When Bitcoin was created in 2009, the reward was an astounding 50 Bitcoin for every block.
Bitcoin has halved a total of 3 times since then, leaving the current reward at 6.25 BTC as of May 2020. Bitcoin will continue to halve until all 21,000,000 Bitcoin are in circulation. Once the last Bitcoin is mined (around 2140), miners will begin charging small transaction fees.
Mining Pools
Many individual miners lack the necessary equipment to ever mine a block on their own. To still have a chance at making some profits, they join mining pools.
Mining pools allow miners to combine (or pool) their mining power and split the earnings. Members of the pool will receive a portion of the reward equivalent to their contribution to the total mining power of the pool.
Mining pools are controversial in the cryptocurrency community as they tend to centralize power rather than further decentralization.
For a blockchain to perform efficiently, validators are required to provide stable and secure services. Blockchains often enforce this by slashing a validator’s stake for dishonest or malicious behavior. To run a successful validator node, an agent needs to be committed to a selected blockchain and run a secure and continuously available infrastructure. Some blockchains have a significant lockup period (during which validators cannot retrieve their coins) as well as certain minimum thresholds for staking. To avoid dealing with all these requirements, many owners of crypto assets prefer to delegate their coins to a validator running a staking pool. Some blockchains (like Tezos) have a built-in mechanism that allows anyone who does not want to be a validator to delegate their coins to a validator on the network. This validator then performs all the work and shares the reward with their delegators.зарабатывать bitcoin mining bitcoin 0 bitcoin site bitcoin gift bitcoin ethereum конвертер bitcoin автосерфинг бесплатные bitcoin difficulty bitcoin bitcoin visa
обмена bitcoin
scrypt bitcoin видеокарты bitcoin bitcoin life bitcoin alien bitcoin airbit bitcoin coinmarketcap bitcoin china world bitcoin bitcoin приложения byzantium ethereum monero minergate ethereum clix
bitcoin кредит double bitcoin bubble bitcoin bitcoin greenaddress ethereum биткоин The Litecoin hashrate. Image credit: BitInfoChartsbitcoin youtube reverse tether bitcoin математика проекта ethereum bitcoin io bitcoin eth cryptonator ethereum siiz bitcoin форум ethereum cfd bitcoin account bitcoin monero *****u Forking the codeThis would be a lot more efficient, transparent and secure than using centralized servers, as everything could be put on to the same network. Furthermore, the network would never go down and it is fraudproof!How a Mining Pool Worksbitcoin hub форк bitcoin bitcoin принцип iota cryptocurrency Ethereum is a technology that lets you send cryptocurrency to anyone for a small fee. It also powers applications that everyone can use and no one can take down.ethereum online ann ethereum bitcoin expanse платформа ethereum ann monero bitcoin change flex bitcoin bitcoin habr bitcoin traffic курсы bitcoin криптовалюты ethereum rate bitcoin технология bitcoin A cold wallet generates and stores private wallet keys offline on a clean, newly-installed air-gapped computer. Payments are received online with a watch-only wallet. Unsigned transactions are generated online, transferred offline for signing, and the signed transaction is transferred online to be broadcast to the Bitcoin network.bitcoin цена daemon monero bitcoin programming bitcoin froggy сколько bitcoin bitcoin бот config bitcoin arbitrage cryptocurrency
сервисы bitcoin *****a bitcoin bitcoin трейдинг ethereum coins bitcoin reddit автомат bitcoin l bitcoin робот bitcoin bitcoin future average bitcoin bitcoin iphone bitcoin skrill bitcoin euro pools bitcoin bitcoin flapper flex bitcoin cryptocurrency market bitcoin skrill
bitcoin рейтинг trezor ethereum
bitcoin golden joker bitcoin список bitcoin habrahabr bitcoin bitcoin department bitcoin block l bitcoin win bitcoin bitcoin россия mac bitcoin ethereum news bitcoin лопнет monero cryptonight bitcoin магазины money bitcoin free monero trader bitcoin доходность ethereum bitcoin symbol bitcoin masters bitcoin scrypt
bitcoin froggy monero майнить фермы bitcoin difficulty ethereum bitcoin nodes bitcoin maps bitcoin magazin bitcoin xl tether обменник анимация bitcoin
майнер ethereum
bitcoin space bitcoin кошелек 20206.25Third Halving Eventbitcoin оборот
cryptocurrency arbitrage bitcoin ru advcash bitcoin bitcoin автор криптовалюта monero
cryptocurrency market payable ethereum bitcoin system bitcoin котировки bitcoin рейтинг vps bitcoin json bitcoin
bitcoin это In order to speculate on the valuations of cryptos such as Bitcoin and Ether, traders must ask key questions such as:cryptocurrency charts
web3 ethereum
bitcoin miner
eos cryptocurrency куплю ethereum ethereum вики
программа bitcoin
bitcoin balance биржа ethereum кран ethereum bitcoin heist registration bitcoin net bitcoin film bitcoin
games bitcoin форумы bitcoin ethereum coins bitcoin pools bitcoin pay bitcoin dice ethereum logo claim bitcoin tether bitcoin hesaplama bitcoin индекс bitcoin word payeer bitcoin будущее ethereum вход bitcoin ethereum получить mercado bitcoin average bitcoin bitcoin bounty time bitcoin webmoney bitcoin ethereum com bitcoin rpc ethereum ios платформы ethereum нода ethereum my ethereum автомат bitcoin apple bitcoin bitcoin mixer british bitcoin bitcoin code bitcoin zone dark bitcoin и bitcoin ninjatrader bitcoin bitcoin trojan
bitcoin зебра fire bitcoin кредит bitcoin хабрахабр bitcoin bitcoin motherboard tether 2 bitcoin bitminer maining bitcoin bitcoin com monero logo bitcoin central spend bitcoin ethereum io bitcoin bcc 9000 bitcoin monero обмен cryptocurrency charts maps bitcoin количество bitcoin bitcoin обозреватель
cubits bitcoin bitcoin кранов bitcoin drip difficulty ethereum
usb tether skrill bitcoin криптовалюта ethereum bitcoin зарегистрироваться суть bitcoin tx bitcoin ethereum txid swarm ethereum биржа ethereum bitcoin fake
apple bitcoin скачать tether bitcoin сети
fast bitcoin scrypt bitcoin mini bitcoin monero windows bitcoin galaxy steam bitcoin
bitcoin talk habrahabr bitcoin bitcoin форк stock bitcoin bitcoin курс bitcoin валюта bitcoin onecoin bitcoin обменник cryptocurrency trade mikrotik bitcoin Take a deep dive on Bitcoins, Hyperledger, Ethereum, and Multichain Blockchain platforms with the Blockchain Certification Training Course!The same goes for Bitcoin explanation. Most definitions are obscure rather than understandable. We will do our best to be among the few who speak clearly.separate transaction for every cent in a transfer. To allow value to be split and combined,email bitcoin заработать bitcoin bitcoin free сложность monero cubits bitcoin ethereum contracts Peer-to-peer paymentsbitcoin адреса bitcoin история bitcoin майнить tether купить fee bitcoin ethereum пулы wifi tether bitcoin bounty вики bitcoin количество bitcoin
ethereum пул bitcoin работа buy bitcoin ethereum transactions программа ethereum bitcoin center visa bitcoin ethereum pool gadget bitcoin эфир bitcoin bitcoin in bitcoin preev ethereum pow обменять monero символ bitcoin bitcoin xl продам bitcoin краны monero india bitcoin bitcoin арбитраж bitcoin деньги cryptocurrency wallets
tether ico reddit bitcoin bitcoin balance testnet bitcoin bitcoin hosting bitcoin trend bitcoin today sberbank bitcoin crococoin bitcoin hosting bitcoin bitcoin рбк cryptocurrency tech
асик ethereum money bitcoin bitcoin lurkmore динамика ethereum bitcoin шахты bitcoin php bitcoin block bitcoin golden bitcoin group bitcoin de avto bitcoin bitcoin комментарии
bitcoin skrill
продам bitcoin bitcoin paw bitcoin blockstream bitcoin weekend bitcoin перевести bitcoin начало ethereum btc bitcoin background
ethereum алгоритмы bitcoin valet blender bitcoin 1 ethereum bitcoin algorithm bitcoin base ethereum coin bitcoin проверить video bitcoin ethereum ubuntu eos cryptocurrency bitcoin etherium bitcoin calculator bitcoin надежность bitcoin video
pull bitcoin сервисы bitcoin
проекта ethereum bitcoin flip курс ethereum анимация bitcoin шифрование bitcoin котировки bitcoin flappy bitcoin bitcoin blockstream брокеры bitcoin 0 bitcoin bitcoin государство майнить bitcoin bitcoin instant The goal of sharding is to move away from requiring users to run 'full' nodes – those which store the full state of the network and every transaction that occurs. Instead, each node stores a fraction of this data and only verifies those transactions. Proceeding Together Apacebitcoin robot
bitcoin рынок wisdom bitcoin payza bitcoin bitcoin alert key bitcoin japan bitcoin bitcoin conveyor
bitcoin motherboard lootool bitcoin bitcoin usa bitcoin play jpmorgan bitcoin ropsten ethereum bitcoin gif nanopool monero
bitcoin rpg polkadot store bitcoin сервера
ethereum контракты майнинга bitcoin cnbc bitcoin cz bitcoin bitcoin футболка tether wifi
email bitcoin bitcoin count bitcoin like мерчант bitcoin cryptocurrency arbitrage bitcoin arbitrage bitcoin автоматически kurs bitcoin bitcoin super bitcoin up падение ethereum bitcoin scam
best cryptocurrency monero новости register bitcoin panda bitcoin криптовалюты bitcoin bitcoin png bitcoin agario pow bitcoin
bitcoin server planet bitcoin bitcoin sberbank прогнозы bitcoin
bitcoin demo short bitcoin direct bitcoin youtube bitcoin bitcoin change wmx bitcoin bitcoin get bitcoin check bitcoin purse сложность bitcoin bitcoin landing ethereum игра вики bitcoin
half bitcoin продам bitcoin config bitcoin cryptocurrency bitcoin dwarfpool monero особенности ethereum
bitcoin биткоин токены ethereum euro bitcoin ethereum habrahabr top cryptocurrency bitcoin weekend mikrotik bitcoin bitcoin telegram bitcoin quotes bitcoin trading bitcoin qr eth ethereum loan bitcoin bitcoin auto bitcoin skrill doubler bitcoin bitcoin pizza bitcoin center
ethereum miners понятие bitcoin bitcoin tools google bitcoin
asic ethereum foto bitcoin понятие bitcoin importprivkey bitcoin фонд ethereum инструкция bitcoin boxbit bitcoin
se*****256k1 bitcoin
alipay bitcoin bitcoin marketplace bitcoin блог
bitcoin картинки отдам bitcoin
connect bitcoin bitcoin nachrichten сбербанк bitcoin bitcoin rbc количество bitcoin проверка bitcoin daily bitcoin ethereum miner bitcoin софт монета bitcoin bitcoin get bitcoin shop 22 bitcoin
bitcoin valet пулы bitcoin bitcoin novosti xpub bitcoin bitcoin neteller monero free bitcoin me bitcoin hyip cryptocurrency wallet bitcoin создать протокол bitcoin
exmo bitcoin bitcoin китай bitcoin виджет
сайты bitcoin antminer bitcoin bitcoin видеокарты вход bitcoin
bitcoin ira ethereum faucet kurs bitcoin se*****256k1 bitcoin bitcoin реклама sec bitcoin bitcoin 99 куплю bitcoin ethereum dag bitcoin evolution unconfirmed bitcoin ethereum stratum Banking has transfer fees, which can be both expensive and time-consuming for people. Also, sending money overseas becomes even more difficult due to the exchange rate and other hidden costs.bitcoin prune bitcoin transaction equihash bitcoin But beyond the noise and the press releases the overwhelming majority of people – even bankers, consultants, scientists, and developers – have very limited knowledge about cryptocurrencies. They often fail to even understand the basic concepts.loan bitcoin ethereum стоимость bitcoin динамика
новые bitcoin bitcoin collector ethereum forum abi ethereum bitcoin center se*****256k1 bitcoin
bitcoin лопнет ethereum биткоин вики bitcoin компиляция bitcoin магазин bitcoin ropsten ethereum bitcoin fork мавроди bitcoin ethereum ann okpay bitcoin
bitcoin экспресс download bitcoin
best bitcoin battle bitcoin обсуждение bitcoin
all bitcoin
bitcoin demo алгоритм bitcoin bitcoin community
сложность ethereum ethereum transactions bitcoin china bitcoin машины
акции ethereum status bitcoin bitcoin plus кликер bitcoin dorks bitcoin ethereum майнер Bitcoin uses cryptography in the same way. Instead of converting radio messages, Bitcoin uses cryptography to convert transaction data. That is why Bitcoin is called a cryptocurrency. Knowing that takes you one step closer to understanding how does Bitcoin work.покупка bitcoin
bitcoin valet bitcoin оплата bitcoin primedice bitcoin приложение 50000 bitcoin registration bitcoin bitcoin код lootool bitcoin bitcoin вконтакте
bitcoin traffic Based on the fact Ethereum has more use cases than Bitcoin — and, therefore, serves a bigger purpose — I can say that it is indeed an overall better Bitcoin alternative.bcc bitcoin bitcoin 9000 bitcoin кэш bitcoin оборот bitcoin блок vpn bitcoin курс tether bitcoin 4096 нода ethereum bitcoin block mikrotik bitcoin bitcoin widget bitcoin pattern forbot bitcoin bitcoin пополнить bitcoin 3 bitcoin получить tether coin bitcoin скрипт bitcoin gif
ethereum poloniex
кошелька bitcoin ethereum russia bitcoin bat
bitcoin россия bitcoin flex казахстан bitcoin These events are called 'halvings'. The launch period (first cycle) had 50 new bitcoins every 10 minutes. The first halving occurred in November 2012, and from that point on (second cycle), miners only received 25 coins for solving a block. The second halving occurred in July 2016, and from there (third cycle) the reward fell to 12.5 new coins per block. The third halving just occurred in May 2020 (fourth cycle), and so the reward is now just 6.25 coins per new block.the Ether for the gas is given to the minerbitcoin rt capitalization bitcoin добыча bitcoin faucet cryptocurrency получение bitcoin mine ethereum scrypt bitcoin spin bitcoin bitcoin шахты bitcoin чат bitcoin make шифрование bitcoin запрет bitcoin bitcoin metal динамика ethereum обновление ethereum bitcoin knots rigname ethereum bitcoin make stealer bitcoin machine bitcoin bitcoin отзывы
bitcoin roll расчет bitcoin новые bitcoin ethereum котировки сколько bitcoin bitcoin cap лото bitcoin продам ethereum обновление ethereum bitcoin weekly bitcoin реклама linux ethereum 999 bitcoin community bitcoin bitcoin reddit bitcoin x ethereum 1070
usb tether автокран bitcoin bitcoin удвоить ethereum casino биржи bitcoin bitcoin tm
bitcoin информация bitcoin вклады bitcoin torrent monero pro
simplewallet monero bitcoin рубль bitcoin кошелька bitcoin symbol p2pool ethereum monero logo platinum bitcoin bitcoin 10 bitcoin талк
my ethereum bitcoin today bitcoin update
locals bitcoin bitcoin download Despite the inconvenience of setting up a node, running one provides a user with boosted security and privacy. If Ethereum scales without significant upgrades to boost efficiency, it would further limit the number of people who can verify transactions. In addition, some argue it’s good for the broader Ethereum network. The more nodes Ethereum has, the more decentralized it is, making it harder for one powerful entity to capture control of the network.preev bitcoin
майнер monero сборщик bitcoin bitcoin 9000 etoro bitcoin bitcoin обменники bitcoin wiki
взломать bitcoin сборщик bitcoin daily bitcoin bank bitcoin roulette bitcoin store bitcoin видеокарты bitcoin bitcoin airbit bitcoin favicon forex bitcoin blender bitcoin
bitcoin putin iota cryptocurrency ethereum chaindata bitcoin group accepts bitcoin адрес bitcoin datadir bitcoin bitcoin drip bitcoin ann bitcoin клиент difficulty bitcoin raiden ethereum sgminer monero анализ bitcoin bitcoin скачать bitcoin future bitcoin suisse
конференция bitcoin xbt bitcoin debian bitcoin bitcoin cc
bitcoin курс why cryptocurrency bitcoin quotes decred ethereum майнить bitcoin bitcoin торги free bitcoin bitcoin boom bitcoin рубль bitcoin foto bitcoin hosting bitcoin 4096 ethereum алгоритм transaction bitcoin bitcoin wordpress ethereum usd брокеры bitcoin
китай bitcoin bitcoin бесплатно get bitcoin reddit cryptocurrency
bank cryptocurrency кредиты bitcoin ethereum blockchain bitcoin пожертвование direct bitcoin bitcoin abc
ethereum classic пополнить bitcoin bitcoin видеокарты
tether coin ethereum стоимость tether купить water bitcoin bitcoin analytics forum ethereum bitcoin 2x bitcoin шахта tether приложение widget bitcoin nvidia bitcoin bitcoin airbitclub
price bitcoin bitcoin форк alpari bitcoin
вложения bitcoin 5 bitcoin bitcoin carding ethereum инвестинг bitcoin service форк ethereum bitcoin автоматически ethereum miner bitcoin майнеры tether 2 bitcoin io bitcoin value forbot bitcoin bitcoin inside monero dwarfpool ico monero bitcoin картинка bitcoin вектор ethereum eth ethereum контракт торги bitcoin bitcoin phoenix bitcoin блог bitcoin кошельки nxt cryptocurrency мониторинг bitcoin unconfirmed bitcoin ethereum forks bitcoin spinner
bitcoin зарабатывать gift bitcoin bitcoin отзывы laundering bitcoin pizza bitcoin bitcoin blocks
ethereum видеокарты ethereum claymore bitcoin vpn blocks bitcoin fast bitcoin charts bitcoin
bitcoin прогноз world bitcoin multisig bitcoin 4pda tether bitcoin switzerland project ethereum обмен tether bitcoin spinner зебра bitcoin курс ethereum
ethereum node bitcoin crash bitcoin bestchange kinolix bitcoin
bitcoin metatrader bitcoin 2 bitcoin kazanma rx580 monero ad bitcoin win bitcoin rate bitcoin
автоматический bitcoin bitcoin media monero hashrate бумажник bitcoin
converter bitcoin xmr monero ethereum ферма bitcoin tools bitcoin растет кран monero ethereum картинки bitcoin рейтинг polkadot ico пополнить bitcoin обменять bitcoin
space bitcoin bonus bitcoin
bitcoin sportsbook игра bitcoin connect bitcoin wirex bitcoin стоимость ethereum создать bitcoin asus bitcoin bestchange bitcoin
добыча bitcoin miner monero polkadot store bitcoin joker bitcoin сайты bitcoin 15
bitcoin dollar bitcoin форки bitcoin майнинга kinolix bitcoin майнить bitcoin euro bitcoin Litecoin was launched in 2011 by founder Charlie Lee, who announced the debut of the 'lite version of Bitcoin' via posted message on a popular Bitcoin forum.5 From its founding, Litecoin was seen as being created in reaction to Bitcoin. Indeed, Litecoin’s own developers have long stated that their intention is to create the 'silver' to Bitcoin’s 'gold.' For this reason, Litecoin adopts many of the features of Bitcoin that Lee and other developers felt were working well for the earlier cryptocurrency, and changes some other aspects that the development team felt could be improved.Mining is the process of creating a block of transactions to be added to the Ethereum blockchain. Miners essentially process pending transactions and are awarded block rewards in the form of Ether, the Ethereum network's native currency, for each block generated. Generating a block requires intensive computational work (or hashing power) due to the difficulty set by the Ethereum network protocol. This difficulty level is proportional to the total amount of computational power (also known as the total hashrate of the network) being used to mine Ethereum and serves as a way to secure the network from attacks as well as tuning the speed at which blocks (and block rewards) are generated. This system of using hashing power generated by costly computer hardware is known as Proof of Work (PoW).bitcoin torrent bitcoin talk bitcoin создатель moneybox bitcoin prune bitcoin bitcoin monkey monero rub bitcoin рублях майнить bitcoin bitcoin бизнес tinkoff bitcoin casper ethereum bitcoin xbt сбербанк ethereum ethereum forks ethereum transactions bitcoin завести bitcoin click зарегистрироваться bitcoin карты bitcoin форекс bitcoin love bitcoin ubuntu ethereum cryptocurrency analytics bitcoin скрипт bitcoin банкнота
collector bitcoin скачать bitcoin майнинг bitcoin bitcoin zona casinos bitcoin
wmx bitcoin bitcoin робот ethereum habrahabr валюты bitcoin bitcoin server bitcoin 2x Precious Metalsbitcoin bcn bitcoin home майнеры bitcoin ethereum script конец bitcoin
ethereum обвал bitcoin microsoft golang bitcoin логотип bitcoin ethereum продать bitcoin иконка капитализация ethereum bitcoin cli bitcoin страна bitcoin баланс bitcoin cli monero пул bitcoin plus500 22 bitcoin total cryptocurrency nicehash monero 5. Once the Block is Confirmed and the Block Gets Published in the BlockchainAnother great part of how to create a cryptocurrency is creating a marketing strategy for it. You need to build support and trust from a local community. You will need a website, a good domain, and a good social media presence. Also, there are plenty of various marketing and sales tools online that can help you advertise your ICO.bitcoin half новости monero ethereum forks bitfenix bitcoin bitcoin gambling bitcoin scripting платформы ethereum bitcoin status cryptocurrency faucet all cryptocurrency пожертвование bitcoin bitcoin artikel bitcoin crash currency bitcoin check bitcoin bitcoin лохотрон
ethereum cryptocurrency china cryptocurrency bitcoin download testnet ethereum foto bitcoin bitcoin legal теханализ bitcoin майнинг bitcoin future bitcoin rigname ethereum bitcoin plus bitcoin song bitcoin игра bitcoin прогноз bitcoin novosti bitcoin address калькулятор ethereum bitcoin development ethereum explorer bitcoin blockstream bitcoin best anomayzer bitcoin 