[Cryptography] Best Internet crypto clock ?

Tony Arcieri bascule at gmail.com
Wed Oct 1 19:28:15 EDT 2014

You could take a hash of some content, use that hash as a Bitcoin private
key, and send the associated public key 1 Satoshi. You could then prove you
calculated that hash at a given time by looking up the associated public
key in the block chain.

Here's something that does just that:


Tony Arcieri
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