Quote from: cr1776 on November 14, 2017, 08:06:53 PM

Quote from: davinci6845 on November 14, 2017, 05:55:51 PM

How can someone combine a timestamp server with their own personal signature?

I found this online:
https://tsa.safecreative.org/

Then perhaps I create a work of music. I want to timestamp the creation of the music by combining a time stamp hash by 3rd party authority (as above) with my own public and personal key.

I illustrate as such:

hash(music work) + hash (timestamp) + hash (author key) = new hash of copyright proof of date/time creation

the important aspect here is the timestamp service has to be 3rd party.

Is such thing possible? How to combine it with bitcoin or other coin? Or maybe entirely free (piggy backing on blockchain transaction times)

Perhaps something like this?:

https://opentimestamps.org
or
https://bitsig.io

very useful thank you!