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A comment on It Looks Like Ethereum Is Going to Fork Again. Parent comment

Re:It Looks Like Ethereum Is Going to Fork Again by divbit on Friday October 14, 2016 @06:39PM (#12711637)
Timestamping documents can be useful:

http://proofofexistence.com

(the site isn't necessary, but quite convenient unless you do it very frequently)

Compare that to going to a notary or something..

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Re:It Looks Like Ethereum Is Going to Fork Again by petertodd on Friday October 14, 2016 @08:26PM (#12712033)
Shameless plug: https://petertodd.org/2016/opentimestamps-announcement and for Git commits https://petertodd.org/2016/opentimestamps-git-integration

Bitcoin timestamping can be a lot more convenient and efficient than that site, and totally free too.

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Re:It Looks Like Ethereum Is Going to Fork Again by divbit on Friday October 14, 2016 @09:21PM (#12712237)
That's a pretty in depth version, will have to check it out. Looks cool.
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