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Yes. Easy on servers, rough on phones. Amethyst used to show the PoW on posts (might still, I’m not on Android) but didn’t have a way to create them. Not sure if it’s been added. I’ve been iPhone for a while now.
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mark tyler 2y ago

Maybe we need a PoW provider market

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mark tyler 2y ago

User drafts message -> pressed add PoW -> user client sends message to PoWaaS -> PoWaaS sends back an LN invoice -> user’s client pays invoice -> PoWaaS sends back nonce

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nobody 2y ago

Be interesting to see how that could work without revealing your nsec, since that’s needed to perform the PoW.

I’m sure this can be done fairly safely self hosted though.

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mark tyler 2y ago

Why is nsec needed? Cant one just add PoW to the signed message?

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nobody 2y ago

The PoW is the number of leading zeros in the ID, so maybe not. Pow could be done, then signing could be done on device. Yeah, I guess that tracks.

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mark tyler 2y ago

Yeah, PoW can be built into the binary version of the npub (no nonce), or into a hash of any values. To prove we aren’t just reusing an old PoW i guess it should be a hash of the contents of the signed message. The PoW verification would work nicely into the signature verification flow.