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2023-03-28 18:00:45

bitcal on Nostr: 03-28-1997 [ANNOUNCE] hash cash postage implementation On this day #[0] announced ...

03-28-1997
[ANNOUNCE] hash cash postage implementation
On this day adam3us (npub1qg8…24kw) announced hash cash — a partial hash collision based postage scheme to fight email spam, which became one of the pieces of Bitcoin puzzle. Thank you, Adam!

"My suggestion is that we have remailers which accept either hash collision postage, or digicash postage."
-- Adam Back

https://cypherpunks.venona.com/date/1997/03/msg00774.html

Author Public Key
npub1tcalvjvswjh5rwhr3gywmfjzghthexjpddzvlxre9wxfqz4euqys0309hn