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  2. List of mines in Portugal - Wikipedia

    en.wikipedia.org/wiki/List_of_mines_in_Portugal

    This list of mines in Portugal is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.

  3. Legality of cryptocurrency by country or territory - Wikipedia

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

    In early 2018 the People's Bank of China announced the State Administration of Foreign Exchange led by Pan Gongsheng would crack down on bitcoin mining. [102] [103] Many bitcoin mining operations in China had stopped operating by January 2018. [101] A complete ban on cryptocurrency trading and mining was put into effect on 24 September 2021. [104]

  4. Mining in Portugal - Wikipedia

    en.wikipedia.org/wiki/Mining_in_Portugal

    Mining in Portugal is regulated by the Portuguese Ministry of Economy and the Geology and Energy Resources authority under the state-run research institute INETI. Mining activities have continued since the pre- Roman era, when most of the region was known as Lusitania .

  5. List of bitcoin companies - Wikipedia

    en.wikipedia.org/wiki/List_of_Bitcoin_companies

    bitcoin exchange [citation needed] Bitwala: 2015 Germany: Berlin: bitcoin debit card, international transfers, bitcoin wallet [2] Blockchain.com: 2011 Luxembourg: wallet provider [citation needed] Blockstream: 2014 United States: San Francisco: software [citation needed] BTC-e: 2011 Russia: bitcoin exchange Shut down by the United States ...

  6. TON (blockchain) - Wikipedia

    en.wikipedia.org/wiki/The_Open_Network

    TON, also known as The Open Network (previously Telegram Open Network), is a decentralized layer-1 blockchain. TON was originally developed by Nikolai Durov who is also known for his role in creating the messaging platform, Telegram .

  7. Bitcoin - Wikipedia

    en.wikipedia.org/wiki/Bitcoin

    Bitcoin (abbreviation: BTC; sign: ₿) is the first decentralized cryptocurrency. Based on a free-market ideology, bitcoin was invented in 2008 by Satoshi Nakamoto, an unknown entity (person or persons). [5] Use of bitcoin as a currency began in 2009, [6] with the release of its open-source implementation.

  8. 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 ...

  9. Cloud mining - Wikipedia

    en.wikipedia.org/wiki/Cloud_mining

    Cloud mining is the process of cryptocurrency mining utilizing a remote data center with shared processing power. [1] Cloud mining has been used by ransomware groups and scammers to launder cryptocurrency. [2] This type of cloud mining enables users to mine bitcoins or alternative cryptocurrencies without managing the hardware.