vinney...axkl's avatar
vinney...axkl vcavallo@vinneycavallo.com 1 month ago
Had an idea for simple timestamps without OP_RETURN, just sending satoshis around:
GitHub
GitHub - vcavallo/timestamp-with-address-derivation: simple bitcoin timestamps without OP_RETURN
simple bitcoin timestamps without OP_RETURN. Contribute to vcavallo/timestamp-with-address-derivation development by creating an account on GitHub.
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vinney...axkl's avatar vinney...axkl
i think timestamping is going to become important in WoT world. it would be trivially easy to automate the mirroring of an npub's curation activities a moment after the OP. ultimately, your WoT will point you towards the "orginal" and filter out the low-effort mirrorbots, but in order to build that trust to begin with (comparing n "new" npubs not already associated with your WoT, all making identical events), you need either money or timestamps. (..and these are actually the same thing 🫣)
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Replies (21)

Fabius's avatar
Fabius 1 month ago
Love this approach! Every innovation that moves data out of the blockchain while using it for irrefutable proof of existence is a win for scalability. Minimalist Bitcoin engineering at its finest. Thanks for sharing! 🙏
vinney...axkl's avatar
vinney...axkl vcavallo@vinneycavallo.com 1 month ago
why is it worthless and how is it unusable? it pays fees to miners. this is identical to their main service: collecting fees to order things. the person making the timestamp has the private key and can recover some of their funds (again, less the miner fee, as is proper).
2 replies ↓
Alexander Hoff ❍'s avatar
Alexander Hoff ❍ axhoff@axhoff.com 1 month ago
ah sorry i thought the „hash“ adress is an arbitrary burner adress but i see now it‘s deterministic? that‘s pretty cool! i built a consumer friendly tool for the same purpose using op_return: proofseal.org
vinney...axkl's avatar
vinney...axkl vcavallo@vinneycavallo.com 1 month ago
i wanted to play with the smallest onchain data footprint / least-"feature"-rich way to get "specific content" + "specific time". you can do it with just sending sats, no other ops required
Alexander Hoff ❍'s avatar
Alexander Hoff ❍ axhoff@axhoff.com 1 month ago
yeah i agree this is probably the closest version to "monetary use" for including hashes on-chain. earlier i did not yet understand that the derived address is actually spendable.
goat's avatar
goat 1 month ago
If someone is careless with the input UTXO, it will probably reveal its holdings.
1 replies ↓
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