brainstorming on cpunks' eve

Eric Hughes hughes at
Mon Mar 14 09:01:17 PST 1994

>> Also, one could set up a hashing/signing service, more akin to a time
>> stamp service.  [....] "Digital Notary" system?

>There's certainly a need for such services.  You have to be careful
>to avoid stepping on Bellcore's work, since I think it's patented,

It is patented, and one of the first claims in the patent is just
signing a claimed time and the given document.  I don't think this
would hold up in court, because of obviousness, but the clause is in


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