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  2. Proof of work - Wikipedia

    en.wikipedia.org/wiki/Proof_of_work

    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.

  3. Cryptocurrency - Wikipedia

    en.wikipedia.org/wiki/Cryptocurrency

    Proof-of-stake is a method of securing a cryptocurrency network and achieving distributed consensus through requesting users to show ownership of a certain amount of currency. It is different from proof-of-work systems that run difficult hashing algorithms to validate electronic transactions.

  4. XRP Ledger - Wikipedia

    en.wikipedia.org/wiki/XRP_Ledger

    Shortly after the XRPL was launched, McCaleb, Britto and Chris Larsen founded the company Open Coin in September 2012 to operate on the ledger. On September 26, 2013, OpenCoin officially changed its name to Ripple Labs, Inc and was at the time headed by Chris Larsen. Unlike many cryptocurrencies, XRP was pre-mined, with 100 billion tokens ...

  5. Peercoin - Wikipedia

    en.wikipedia.org/wiki/Peercoin

    Peercoin, also known as Peer-to-Peer Coin, PP Coin, or PPC, is a cryptocurrency utilizing both proof-of-stake and proof-of-work systems. [ 1 ] [ 2 ] It is notable as the first cryptocurrency to implement the proof-of-stake consensus mechanism .

  6. How to start investing in cryptocurrency: A guide for beginners

    www.aol.com/finance/start-investing-crypto...

    Crypto exchange or broker stocks: Buying stock in a company that’s poised to profit on the rise of cryptocurrency regardless of the winner could be an interesting option, too.

  7. Blockchain - Wikipedia

    en.wikipedia.org/wiki/Blockchain

    [3] [31]: ch. 08 [32] For example, bitcoin uses a proof-of-work system, where the chain with the most cumulative proof-of-work is considered the valid one by the network. There are a number of methods that can be used to demonstrate a sufficient level of computation .

  8. Proof of stake - Wikipedia

    en.wikipedia.org/wiki/Proof_of_stake

    For a blockchain transaction to be recognized, it must be appended to the blockchain. In the proof of stake blockchain, the appending entities are named minters or validators (in the proof of work blockchains this task is carried out by the miners); [2] in most protocols, the validators receive a reward for doing so. [3]

  9. Bitcoin Gold - Wikipedia

    en.wikipedia.org/wiki/Bitcoin_Gold

    Bitcoin Gold hard forked from the bitcoin blockchain on October 24, 2017. [3] The stated purpose of the hard fork was to change the proof of work algorithm so that ASICs (Application-Specific Integrated Circuits) which are used to mine bitcoin cannot be used to mine the Bitcoin Gold blockchain in the hopes that enabling mining on commonly available graphics cards would allow mining from a home PC.