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...as itself also published on the same mailing-list, the previous year - May 1997. (Like the B-money proposal, bitcoin itself also uses the hashcash cost-f ...

The Hashcash [[proof-of-work]] function was invented in 1997 by [[Adam Back]], and proposed for anti-DoS uses including preventing: anon In the original 1997 algorithm hashcash used SHA1 because at that time, this was the defacto and ...

...vices to children with developmental delays or learning difficulties since 1997. SPICES was set up to meet the needs of children who lack access to such pr ...