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Hashcash
System for dealing with email spam.
Wikipedia | Hashcash
Statements about
Hashcash
Instance Of
Cryptographic Protocol
Software
Inception
1997
Discoverer or Inventor
Adam Back
Official Website
http://hashcash.org/
Described by Source
Hashcash - A Denial of Service Counter-Measure
Uses
Proof of Work
Criterion Used
:
Proposal
Wikidata