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2. 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 ...

3. 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).

4. Bitcoin - Wikipedia

   en.wikipedia.org/wiki/Bitcoin

   Bitcoin wallets were the first cryptocurrency wallets, enabling users to store the information necessary to transact bitcoins. [85][8]: ch. 1, glossary The first wallet program, simply named Bitcoin, and sometimes referred to as the Satoshi client, was released in 2009 by Nakamoto as open-source software. [7]

5. History of bitcoin - Wikipedia

   en.wikipedia.org/wiki/History_of_bitcoin

   The history of bitcoin started with its invention and implementation by Satoshi Nakamoto, who integrated many existing ideas from the cryptography community. Over the course of bitcoin's history, it has undergone rapid growth to become a significant store of value both on- and offline.

6. Proof of work - Wikipedia

   en.wikipedia.org/wiki/Proof_of_work

   In 2009, the Bitcoin network went online. Bitcoin is a proof-of-work digital currency that, like Finney's RPoW, is also based on the Hashcash PoW. But in Bitcoin, double-spend protection is provided by a decentralized P2P protocol for tracking transfers of coins, rather than the hardware trusted computing function used by RPoW.

7. Proof of stake - Wikipedia

   en.wikipedia.org/wiki/Proof_of_stake

   Proof-of-stake (PoS) protocols are a class of consensus mechanisms for blockchains that work by selecting validators in proportion to their quantity of holdings in the associated cryptocurrency. This is done to avoid the computational cost of proof-of-work (POW) schemes. The first functioning use of PoS for cryptocurrency was Peercoin in 2012 ...

8. Smart contract - Wikipedia

   en.wikipedia.org/wiki/Smart_contract

   Etymology. By 1996, Nick Szabo was using the term "smart contract" to refer to contracts which would be enforced by physical property (such as hardware or software) instead of by law. Szabo described vending machines as an example of this concept. [13][14] In 1998, the term was used to describe objects in rights management service layer of the ...

9. List of bitcoin forks - Wikipedia

   en.wikipedia.org/wiki/List_of_bitcoin_forks

   The following is a list of notable hard forks splitting bitcoin by date and/or block: Bitcoin SV: Forked at block 556766, 15 November 2018, for each Bitcoin Cash (BCH), an owner got 1 Bitcoin SV (BSV). eCash: Forked at block 661648, 15 November 2020, for each Bitcoin Cash (BCH), an owner got 1,000,000 eCash (XEC).