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  2. Bitcoin - Wikipedia

    en.wikipedia.org/wiki/Bitcoin

    The domain name bitcoin.org was registered on 18 August 2008. [14] On 31 October 2008, a link to a white paper authored by Satoshi Nakamoto titled Bitcoin: A Peer-to-Peer Electronic Cash System was posted to a cryptography mailing list. [15] Nakamoto implemented the bitcoin software as open-source code and released it in January 2009. [7]

  3. Cryptocurrency wallet - Wikipedia

    en.wikipedia.org/wiki/Cryptocurrency_wallet

    An example paper printable bitcoin wallet consisting of one bitcoin address for receiving and the corresponding private key for spending. A cryptocurrency wallet is a device, [1] physical medium, [2] program or an online service which stores the public and/or private keys [3] for cryptocurrency transactions.

  4. Cryptocurrency - Wikipedia

    en.wikipedia.org/wiki/Cryptocurrency

    By November 2018, bitcoin was estimated to have an annual energy consumption of 45.8TWh, generating 22.0 to 22.9 million tons of CO 2, rivalling nations like Jordan and Sri Lanka. [250] By the end of 2021, bitcoin was estimated to produce 65.4 million tons of CO 2, as much as Greece, [251] and consume between 91 and 177 terawatt-hours annually ...

  5. Blockchain - Wikipedia

    en.wikipedia.org/wiki/Blockchain

    Blockchain. A blockchain is a distributed ledger with growing lists of records (blocks) that are securely linked together via cryptographic hashes. [1][2][3][4] Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data (generally represented as a Merkle tree, where data nodes are represented by leaves).

  6. Bitcoin protocol - Wikipedia

    en.wikipedia.org/wiki/Bitcoin_protocol

    A diagram of a bitcoin transfer. The bitcoin protocol is the set of rules that govern the functioning of bitcoin.Its key components and principles are: a peer-to-peer decentralized network with no central oversight; the blockchain technology, a public ledger that records all bitcoin transactions; mining and proof of work, the process to create new bitcoins and verify transactions; and ...

  7. Satoshi Nakamoto - Wikipedia

    en.wikipedia.org/wiki/Satoshi_Nakamoto

    Satoshi Nakamoto is the name used by the presumed pseudonymous [1][2][3][4] person or persons who developed bitcoin, authored the bitcoin white paper, and created and deployed bitcoin's original reference implementation. [5] As part of the implementation, Nakamoto also devised the first blockchain database. [6]

  8. Bitcoin Core - Wikipedia

    en.wikipedia.org/wiki/Bitcoin_Core

    Bitcoin Core is free and open-source software that serves as a bitcoin node (the set of which form the Bitcoin network) and provides a bitcoin wallet which fully verifies payments. It is considered to be bitcoin's reference implementation. [1] Initially, the software was published by Satoshi Nakamoto under the name "Bitcoin", and later renamed ...

  9. List of bitcoin companies - Wikipedia

    en.wikipedia.org/wiki/List_of_Bitcoin_companies

    bitcoin exchange [citation needed] Bitwala: 2015 Germany: Berlin: bitcoin debit card, international transfers, bitcoin wallet [2] Blockchain.com: 2011 Luxembourg: wallet provider [citation needed] Blockstream: 2014 United States: San Francisco: software [citation needed] BTC-e: 2011 Russia: bitcoin exchange Shut down by the United States ...