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flabberghaster wrote

I think the only thing using a block chain buys you over a normal notary is that everyone can see that the notary signed off on it in real time, so that if you have a corrupt notary (or one gets hacked) and they sign off on something while claiming they saw it before they actually did, people would be able to prove it.

You could however, make the signatures public without a block chain type scheme, to achieve this.

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