Bitcoin[a] (?) is a cryptocurrency invented in 2008 by an unknown person or group of people using the name Satoshi Nakamoto.[13] The currency began use in 2009[14] when its implementation was released as open-source software.[6]:ch. 1 Bitcoin is a decentralized digital currency, without a central bank or single administrator, that can be sent from user to user on the peer-to-peer bitcoin network without the need for intermediaries.[7] Transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a blockchain.
? (Unicode: U+20BF ? BITCOIN SIGN (HTML ₿))[a] Ticker symbol BTC, XBT Precision 10-8 Subunits 1/1000 millibitcoin 1/100000000 satoshi[2] Development Original author(s) Satoshi Nakamoto White paper "Bitcoin: A Peer-to-Peer Electronic Cash System"[4] Implementation(s) Bitcoin Core Initial release 0.1.0 / 9 January 2009 (12 years ago) Latest release 0.21.1 / 2 May 2021 (12 days ago)[3] Code repository https://github.com/bitcoin/bitcoin Development status Active Websitebitcoin.org Ledger Ledger start 3 January 2009 (12 years ago) Timestamping scheme Proof-of-work (partial hash inversion) Hash function SHA-256 Issuance schedule Decentralized (block reward) Initially ?50 per block, halved every 210,000 blocks[7] Block reward ?6.25[c] Block time 10 minutes Block explorer Many implementations Circulating supply ?18,660,000 (as of 20 March 2021) Supply limit ?21,000,000[5][d] The symbol was encoded in Unicode version 10.0 at position U+20BF ? BITCOIN SIGN in the Currency Symbols block in June 2017.[1] Compatible with ISO 4217. May 2020 to approximately 2024, halved approximately every four years The supply will approach, but never reach, ?21 million. Issuance will permanently halt c. 2140 at ?20,999,999.9769.[6]:ch. 8 This article contains special characters. Without proper rendering support, you may see question marks, boxes, or other symbols. Bitcoins are created as a reward for a process known as mining. They can be exchanged for other currencies, products, and services,[15] but the real-world value of the coins is extremely volatile.[16] Research produced by the University of Cambridge estimated that in 2017, there were 2.9 to 5.8 million unique users using a cryptocurrency wallet, most of them using bitcoin.[17] Users choose to participate in the digital currency for a number of reasons: ideologies such as commitment to anarchism, decentralization and libertarianism, convenience, using the currency as an investment and pseudonymity of transactions. Increased use has led to a desire among governments for regulation in order to tax, facilitate legal use in trade and for other reasons (such as investigations for money laundering and price manipulation).
Bitcoin has been criticized for its use in illegal transactions, the large amount of electricity (and thus carbon footprint) used by mining, price volatility, and thefts from exchanges. Some economists and commentators have characterized it as a speculative bubble at various times. Bitcoin has also been used as an investment, although several regulatory agencies have issued investor alerts about bitcoin.
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CHIA_COIN TICKER:(XCH)
In 2018, a proposed cryptocurrency Chia presented two papers presenting a new protocol based on proof of space[14] and proof of time.[15]
In February of 2021, Chia published a white paper outlining its business and has since launched its mainnet and Chia coin (XCH) using the Proof of Space Time concept.[16]
iMD Companies, Inc. Launches Cryptocurrency Farming Data Center Operations in San Francisco Bay Area and Sacramento Facilities. https://t.co/b2AZgCdApv
News out from $icbu. iMD Companies, Inc. Launches New Crypto Currency Farming Data Center Operations in Phoenix, Arizona and Gives Guidance on Non-Fungible Token (NFT) Progress for the Company. https://t.co/wTeeMspClO
News out from $icbu. iMD Companies, Inc. Launches New Crypto Currency Farming Data Center Operations in Phoenix, Arizona and Gives Guidance on Non-Fungible Token (NFT) Progress for the Company. https://t.co/wTeeMspClO