Bitcoin - Wikipedia
https://en.wikipedia.org/wiki/BitcoinBitcoin (abbreviation: BTC or XBT; sign: ₿) is a protocol which implements a highly available, public, and decentralized ledger.In order to update the ledger, a user must prove they control an entry in the ledger. The protocol specifies that …
Bitcoin Billionaires
https://billionaires.ioBitcoin Billionaires is a collection of 13,337 unique pixel art NFTs. Your NFT is a membership to the "Billionaires", an elite community with games, rewards, and other benefits. Join our …