@St_Rev sorry, i guess i should clarify: verifies they existed at that time. "have not been altered" is more complicated
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@cwage Presumably if they're altered they don't match the hash? -
@St_Rev i was just thinking like "hasn't been altered at all ever before that" which of course is impossible -
@cwage Well suppose you record video of police at an event where the time/place is public knowledge.
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@St_Rev one of a few implementations: http://www.proofofexistence.com/about -
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@St_Rev Would only be as trustworthy as the vendor ... which would necessary make most of its money from government contracts. -
@gattsuru What about an open standard a la bitcoin, where you have to pay in computationally to be authenticated?
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. Banned in Sweden. SubGenius, Zhuangist, white-hat troll. Defrocked mathematician. Brain problems.