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2. Bitcoin - Wikipedia

   en.wikipedia.org/wiki/Bitcoin

   Bitcoin (abbreviation: BTC; sign: ₿) is the first decentralized cryptocurrency. Nodes in the peer-to-peer bitcoin network verify transactions through cryptography and record them in a public distributed ledger , called a blockchain , without central oversight.

3. History of bitcoin - Wikipedia

   en.wikipedia.org/wiki/History_of_bitcoin

   History of bitcoin. Bitcoin is a cryptocurrency, a digital asset that uses cryptography to control its creation and management rather than relying on central authorities. [1] Originally designed as a medium of exchange, Bitcoin is now primarily regarded as a store of value.

4. Legality of cryptocurrency by country or territory - Wikipedia

   en.wikipedia.org/wiki/Legality_of_cryptocurrency...

   Whereas, in the majority of countries the usage of cryptocurrency isn't in itself illegal, its status and usability as a means of payment (or a commodity) varies, with differing regulatory implications. [2] While some states have explicitly allowed its use and trade, others have banned or restricted it.

5. List of bitcoin companies - Wikipedia

   en.wikipedia.org/wiki/List_of_Bitcoin_companies

   BTC-e: 2011 Russia: bitcoin exchange Shut down by the United States government in July 2017 [citation needed] Bundle Africa: 2019 Nigeria: Nigeria: Cryptocurrency exchange, cryptocurrencies [3] Canaan Creative: 2013 China: Beijing: ASIC based bitcoin miners [citation needed] Circle: 2013 United States: Boston: wallet provider [citation needed ...

6. 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 ...

7. Cryptocurrency - Wikipedia

   en.wikipedia.org/wiki/Cryptocurrency

   Cryptocurrencies are generally viewed as a distinct asset class in practice. [ 7 ][ 8 ][ 9 ] Some crypto schemes use validators to maintain the cryptocurrency. In a proof-of-stake model, owners put up their tokens as collateral. In return, they get authority over the token in proportion to the amount they stake.

8. List of bitcoin forks - Wikipedia

   en.wikipedia.org/wiki/List_of_bitcoin_forks

   The following is a list of notable hard forks splitting bitcoin by date and/or block: Bitcoin Cash: Forked at block 478558, 1 August 2017, for each bitcoin (BTC), an owner got 1 Bitcoin Cash (BCH) Bitcoin Satoshi Vision: Forked at block 556766, 15 November 2018, for each Bitcoin Cash (BCH), an owner got 1 Bitcoin SV (BSV).

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