Buzzwords Debunked
Blockchain
A blockchain is a shared record that many computers keep matching copies of, so no single owner can quietly rewrite past entries. It is genuinely useful in one narrow situation: parties who do not trust each other and have no neutral referee available. For nearly every small business, a normal database with good backups does the same job faster and cheaper.
This entry has not yet received a source-reviewed lesson update.
Member lesson
The definition and sources are public. The complete practical lesson is for members.