On May 7, 2019, Binance revealed that it had been the victim of a “large scale security breach” in which hackers had stolen 7,000 Bitcoin worth around U.S.$40 million at the time.[11] Binance CEO Changpeng Zhao said the hackers “used a variety of techniques, including phishing, viruses and other attacks” and structured their transaction “in a way that passed our existing security checks.”[12] Binance halted further withdrawals and deposits but allowed trading to continue. The site pledged to reimburse customers through its secure asset fund.

Прошедшая неделя оказалась для криптовалютной индустрии одной из наиболее запоминающихся в 2019 году – долго ожидавшийся запуск платформы Bakkt, наконец, состоялся, однако роста рынка, как предполагали многие, не случилось. Более того, за неделю цена «цифрового золота» упала на внушительные 20%. Волатильность курса биткоина  Еще в понедельник биткоин торговался в районе $10 000, но даже небольшое […]

Кач е о significado де Bitcoin

As with other cryptocurrencies, the validity of each ether is provided by a blockchain, which is a continuously growing list of records, called blocks, which are linked and secured using cryptography.[30][31] By design, the blockchain is inherently resistant to modification of the data. It is an open, distributed ledger that records transactions between two parties efficiently and in a verifiable and permanent way.[32] Unlike Bitcoin, Ethereum operates using accounts and balances in a manner called state transitions. This does not rely upon unspent transaction outputs (UTXOs). State denotes the current balances of all accounts and extra data. State is not stored on the blockchain, it is stored in a separate Merkle Patricia tree. A cryptocurrency wallet stores the public and private "keys" or "addresses" which can be used to receive or spend ether. These can be generated through BIP 39 style mnemonics for a BIP 32 "HD Wallet". In Ethereum, this is unnecessary as it does not operate in a UTXO scheme. With the private key, it is possible to write in the blockchain, effectively making an ether transaction.
Смарт-контракты заложены и в блокчейне Биткоина, однако их возможности были умышленно ограничены создателем криптовалюты Сатоши Накамото. В основе используется язык программирования Script. У него отсутствует доступ к blockchain или транзакциям, поэтому не может проверять все условия сделок. Поэтому смарт-контракты в системе Bitcoin способны справиться только с самыми простыми задачами.
To be accepted by the rest of the network, a new block must contain a proof-of-work (PoW).[80] The system used is based on Adam Back's 1997 anti-spam scheme, Hashcash.[91][failed verification][4] The PoW requires miners to find a number called a nonce, such that when the block content is hashed along with the nonce, the result is numerically smaller than the network's difficulty target.[7]:ch. 8 This proof is easy for any node in the network to verify, but extremely time-consuming to generate, as for a secure cryptographic hash, miners must try many different nonce values (usually the sequence of tested values is the ascending natural numbers: 0, 1, 2, 3, ...[7]:ch. 8) before meeting the difficulty target.
On 3 January 2009, the bitcoin network was created when Nakamoto mined the first block of the chain, known as the genesis block.[25][26] Embedded in the coinbase of this block was the text "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks".[16] This note references a headline published by The Times and has been interpreted as both a timestamp and a comment on the instability caused by fractional-reserve banking.[27]:18

Является ли форекс в криптографию