Hashcash is a denial-of-service counter measure tool. It’s main current use is to help hashcash users avoid losing email due to content based and blacklist based anti-spam systems. See: http://www.hashcash.org/
User Options:
All trademarks and copyrights within the FreeLists archives are owned by their respective owners. Everything else ©2007 Avenir Technologies, LLC. FreeLists is a service of Avenir Technologies, LLC.