A blockchain,[1][2][3] originally block chain,[4][5] is a continuously growing list of records, called blocks, which are linked and secured using cryptography.[1][6] Each block typically contains a cryptographic hash of the previous block,[6] a timestamp and transaction data.[7] By design, a blockchain is inherently resistant to modification of the data. It is “an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way”.[8] For use as a distributed ledger, a blockchain is typically managed by a peer-to-peer network collectively adhering to a protocol for validating new blocks. Once recorded, the data in any given block cannot be altered retroactively without the alteration of all subsequent blocks, which requires collusion of the network majority.
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1 BTC = | 67436.0800 USD |
1 BTC = | 61999.2300 EUR |
1 BTC = | 1028.08000 LTC |
1 BTC = | 27.8400000 ETH |
1 BTC = | 52069.3100 GBP |
1 BTC = | 102496.0100 AUD |
1 BTC = | 93814.3000 CAD |
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Ethereum rates
1 ETH = | 2421.97000 USD |
1 ETH = | 2226.86000 EUR |
1 ETH = | 36.9300000 LTC |
1 ETH = | 0.03591000 BTC |
1 ETH = | 1870.94000 GBP |
1 ETH = | 3677.56000 AUD |
1 ETH = | 3371.91000 CAD |