Service lets you "certify" a document using the Bitcoin blockchain

Re:Service lets you "certify" a document using the Bitcoin b... by adamryman on Friday November 29, 2013 @11:42AM (#6820018)

Can we see them?

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Re:Service lets you "certify" a document using the Bitcoin b... by beagle3 on Friday November 29, 2013 @03:23PM (#6820877)

I guess they are on a backup or misremembered - but examples are really easy to find on the net if you want them:

http://www.win.tue.nl/hashclash/ChosenPrefixCollisions/ has a multicollision: 12 PDF files with different content and the same MD5 hash.

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