blockchain
SayBLOK-chaynUS/ˈblɑkˌtʃeɪn/UK/ˈblɒkˌtʃeɪn/
Pluralblockchains
- 1A shared computer record of past payments, kept and checked by many computers at once.
Like a class notebook that everyone writes in and everyone can read, so no one can secretly change a page.
Every payment made with this digital money is saved on the blockchain.
No one can secretly change old records on a blockchain, because many computers keep a copy.
Note
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Origin
It comes from 'block' plus 'chain', from the earlier phrase 'block chain'.