While I’ve been getting a fair few programming exercises from Reddit’s /r/dailyprogrammer, more recently I’ve started following a few other sub-Reddits, such as /r/programming and /r/netsec. While browsing the former, I came across this intriguing gem of a problem: HashChallenge: can you find the lowest value SHA-512 hash?

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I’m perhaps a little late to last week’s DailyProgrammer challenge to implement a user-space threading system, without using any sort of built in thread library, but it just sounded too interesting to pass up.

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