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Hashcash

May 26, 2018

Anti-spam / denial of service counter-measure tool

The hashcash tool allows you to create hashcash tokens to attach to emails you send, and to verify hashcash tokens attached to emails you receive. A hashcash token constitutes a proof-of-work which takes a parameterizable amount of work to compute for the sender.

WWW http//www.hashcash.org/