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Blockchain.info was established by Ben Reeves in 2011. He launched a website which could be used to track bitcoin transactions. [8] The website was a block explorer, a website that allowed bitcoin users to see the details of public cryptocurrency transactions if they have the identifying hash code for the transaction.
Because blockchains are typically public, anyone can view the contents of transactions by querying a node or block explorer site (such as Etherscan.io or BitRef.com). By using common-spend clustering algorithms, it is possible to map the transactions of certain entities on the blockchain. [7]
Hal Finney (4 May 1956 – 28 August 2014) was a pre-bitcoin cryptographic pioneer and the first person (other than Nakamoto himself) to use the software, file bug reports, and make improvements. [27] He also lived a few blocks from a man named Dorian Satoshi Nakamoto, according to Forbes journalist Andy Greenberg. [28]
Bitcoin: January 3, 2009 Satoshi Nakamoto: BTC. PoW with Nakamoto Consensus Yes (scripts) No No Probabilistic UTXO: First and most well-known blockchain of all; BTC is the most valuable token in terms of market share. [1] [2] Litecoin: Oct 8, 2011 Charlie Lee LTC PoW: Yes (scripts) Yes [1] [3] Peercoin: Aug 19, 2012 PPC PoW: Yes (scripts) No [1 ...
Orphan blocks (purple) exist outside of the main chain. A blockchain is a decentralized, distributed, and often public, digital ledger consisting of records called blocks that are used to record transactions across many computers so that any involved block cannot be altered retroactively, without the alteration of all subsequent blocks.
Nano uses a block-lattice data structure, where every account has its own blockchain for storing transactions. [ 15 ] [ 16 ] It is the first cryptocurrency to use a directed acyclic graph data structure, [ 17 ] by having a "block" consisting of only one transaction and the account's current balance.
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Dash was designed to allow transactions to occur quickly and to implement a governance structure that addresses perceived shortcomings in Bitcoin. [3]Governance is managed through a form of decentralized autonomous organization in which decisions are made via a blockchain.
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