hashcash A proof of work system to anonymously create accounts on Atheme irc services via their XML RPC API and a custom patchset. XMLRPC Patches The patchset used with atheme 7.2 can be seen in the following commits: https://github.com/hackint/atheme/commit/65c96368416f909cecfe8ac20da79fac2fea85c8 https://github.com/hackint/atheme/commit/c1cc4a7f543b7d6a8c7562fada09b83d5eb44736 https://github.com/hackint/atheme/commit/faac44b5a5e38f99eee17f74fd89559d60f4b086