Crowe 2016 (†771)Crowe, Portia. "There is a 'game changer' technology on Wall Street and people keep confusing it with bitcoin," Business Insider (5 March 2016).
- blockchain : Blockchains are ledgers (like Excel spreadsheets), but they accept inputs from lots of different parties. The ledger can only be changed when there is a consensus among the group. That makes them more secure, and it means there's no need for a central authority to approve transactions. ¶ It's a spreadsheet [that has] special qualities that make it better than traditional databases. [It's] shared publicly, decentralized, secure, trusted, and automated. (†1948)