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  2. Blockchain - Wikipedia

    en.wikipedia.org/wiki/Blockchain

    Most distributed blockchain protocols, whether proof of work or proof of stake, cannot guarantee the finality of a freshly committed block, and instead rely on "probabilistic finality": as the block goes deeper into a blockchain, it is less likely to be altered or reverted by a newly found consensus.

  3. 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 ...

  4. Cryptocurrency - Wikipedia

    en.wikipedia.org/wiki/Cryptocurrency

    A blockchain is "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way". [63] 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 ...

  5. Technology - Wikipedia

    en.wikipedia.org/wiki/Technology

    Technology is the application of conceptual knowledge to achieve practical goals, especially in a reproducible way. [1] The word technology can also mean the products resulting from such efforts, [2] [3] including both tangible tools such as utensils or machines, and intangible ones such as software.

  6. Privacy and blockchain - Wikipedia

    en.wikipedia.org/wiki/Privacy_and_blockchain

    This technology rose to popularity after the creation of Bitcoin, the first application of blockchain technology, which has since catalyzed other cryptocurrencies and applications. [3] Due to its nature of decentralization, transactions and data are not verified and owned by one single entity as they are in centralized data base systems.

  7. 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.

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    mail.aol.com

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  9. Decentralized finance - Wikipedia

    en.wikipedia.org/wiki/Decentralized_finance

    They emerged within decentralized finance (DeFi), [3] a sector of blockchain technology and fintech. [6] Centralized exchanges (CEXs), DEXs and DEX aggregators are all built on a multi-layered DeFi architecture, with each layer serving a well-defined purpose. [3] (See Figure: Multi-layered Architecture of the DeFi Stack).