proof of work

From Wiktionary, the free dictionary
Jump to navigation Jump to search

English

[edit]

Alternative forms

[edit]

Etymology

[edit]

Coined in a 1999 paper.[1]

Noun

[edit]

proof of work (countable and uncountable, plural proofs of work)

  1. (cryptography, cryptocurrencies) A form of cryptographic proof in which a prover proves to verifiers that a certain amount of a specific computational effort has been expended.
    Synonym: PoW
    Coordinate terms: proof of stake, proof of space
    • 2008 October 31, Satoshi Nakamoto, “Bitcoin: A Peer-to-Peer Electronic Cash System”, in metzdowd.com Cryptography Mailing List‎[1]:
      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.
    • 2018 March 5, Nouriel Roubini, Preston Byrne, “Bitcoin is based on the blockchain pipe dream”, in The Guardian‎[2]:
      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.

Translations

[edit]

See also

[edit]

References

[edit]
  1. ^ Markus Jakobsson, Ari Juels (1999) “Proofs of Work and Bread Pudding Protocols”, in Secure Information Networks: Communications and Multimedia Security, Kluwer Academic Publishers, →DOI, pages 258–272

Further reading

[edit]
Retrieved from "https://en.wiktionary.org/w/index.php?title=proof_of_work&oldid=78979582"