Meaning of proof of work | Babel Free

Definitions

1. A form of cryptographic proof in which a prover proves to verifiers that a certain amount of a specific computational effort has been expended.
   countable, uncountable
2. Used other than figuratively or idiomatically: see proof, of, work.
   countable, uncountable

Equivalents

Examples

“The network timestamps transactions by hashing them into an ongoing chain of hash-based proof-of-work, forming a record that cannot be changed without redoing the proof-of-work.”

“Blockchains that use “proof-of-work”, as many popular cryptocurrencies do, raise yet another problem: they require a huge amount of raw energy to secure them.”

CEFR level