xkcd-hashing is a multiprocessing, brute force Skein1024 hash program quickly created for the xkcd Externalities challenge. It runs on OS X, Ubuntu, and Windows and autosubmits low diff answers as they are found. This implementation was used for a time, before the student body switched to a C implementation. Results here.Search for data that hashes to the correct goal output hash. This script will randomly Skein1024 hash data and check the digest output to determine how many bits are different from the goal output. Whenever a "best" guess is found, it is submitted to the xkcd site, assuming your network connection is working.