bitcoin

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DATE: Jan. 12, 2018, 10:46 a.m.

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  1. From Wikipedia, the free encyclopedia
  2. Bitcoin
  3. Bitcoin logo.svg
  4. Prevailing bitcoin logo
  5. Denominations
  6. Plural bitcoins
  7. Symbol ₿[a]
  8. Ticker symbol BTC, XBT[b]
  9. Subunits
  10.  ​1⁄1000 millibitcoin[1]
  11.  ​1⁄100000000 satoshi[3]
  12. Coins Unspent outputs of transactions (in multiples of a satoshi)[4]:ch. 5
  13. Development
  14. Original author(s) Satoshi Nakamoto
  15. White paper Bitcoin: A Peer-to-Peer Electronic Cash System[5]
  16. Reference implementation Bitcoin Core
  17. Initial release 0.1.0 / 9 January 2009 (9 years ago)
  18. Latest release 0.15.1 / 11 November 2017 (2 months ago)
  19. Website bitcoin.org
  20. Ledger
  21. Ledger start 3 January 2009 (9 years ago)
  22. Timestamping scheme Proof-of-work (partial hash inversion)
  23. Hash function SHA-256
  24. Issuance Block reward[6][7]
  25. Block reward ₿12.5[c]
  26. Block time 10 minutes
  27. Block explorer blockchain.info
  28. Circulating supply ₿16,770,512 (as of 29 December 2017)
  29. Supply limit ₿21,000,000
  30. Valuation
  31. Exchange rate Increase US$14.516 thousand (as of 29 December 2017)
  32. Market cap Increase US$243.4 billion (as of 29 December 2017)
  33. Jump up ^ The symbol was encoded in Unicode version 10.0 at position U+20BF ₿ BITCOIN SIGN in the Currency Symbols block in June 2017.[2]
  34. Jump up ^ Compatible with ISO 4217.
  35. Jump up ^ July 2016 to approximately June 2020, halved approximately every four years
  36. This article contains special characters. Without proper rendering support, you may see question marks, boxes, or other symbols.
  37. File:Bitcoin explained in 3 minutes.webm
  38. Bitcoin explained in 3 minutes
  39. Bitcoin is a cryptocurrency and worldwide payment system.[8]:3 It is the first decentralized digital currency, as the system works without a central bank or single administrator.[8]:1[9] The network is peer-to-peer and transactions take place between users directly, without an intermediary.[8]:4 These transactions are verified by network nodes through the use of cryptography and recorded in a public distributed ledger called a blockchain. Bitcoin was invented by an unknown person or group of people under the name Satoshi Nakamoto[10] and released as open-source software in 2009.[11]
  41. Bitcoins are created as a reward for a process known as mining. They can be exchanged for other currencies,[12] products, and services. As of February 2015, over 100,000 merchants and vendors accepted bitcoin as payment.[13] Research produced by the University of Cambridge estimates that in 2017, there are 2.9 to 5.8 million unique users using a cryptocurrency wallet, most of them using bitcoin.[14]
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