2) What is Blockchain?A blockchain is a distributed digital ledger that allows for the secure storage of data. By recording any kind of information—such as bank account transactions, the ownership of Non-Fungible Tokens (NFTs), or Decentralized Finance (DeFi) smart contracts—in one place, and distributing it to many different computers, blockchains ensure that data can’t be manipulated without everyone in the system being aware.
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The Trent Windsurfing Club near Nottingham, England, which communicates with members using both WhatsApp and email, spells out other considerations in a 15-point list on its website.