Re: RPOW - Reusable Proofs of Work

Mailing List Cryptography Mailing List · Event August 20, 2004 23:20 UTC · Added September 29, 2026 · Updated September 29, 2026

Figures: David Honig

proof-of-work hashcash precursor

David Honig August 20, 2004 23:20 UTC

At 04:34 PM 8/20/04 -0500, Matt Crawford wrote:

I’m wondering how applicable RPOW is.

If you think of POW as a possible SPAM mitigation

As spam mitigation, it might work better than hashcash. As cash, it lacks the anonymity of “bearer-documents (tm)” since there is one clearing house. This might be improved via support for a system of mostly independent clearing houses which also interchange at interchange places. However, those would likely be regulated by the Powers That Be, ergo not alleviating my concerns about anonymity.

My 2 dinars.

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Posted Friday, August 20, 2004, 19:20:09 EDT (23:20:09 UTC) to the cryptography mailing list, replying to a message from Matt Crawford that is not archived here. The signature block, which gives a home address and telephone number, is not reproduced.