Replying to Petite Badger

Use NIP-26 to delegate authentication with NIP-42 to have zappers authenticate to payed relays on behalf of the user zapping.

The client would create a NIP-26 time limited delegation for kind 22242 and add it to the NIP-57 zap request. The zapper can then use this delegation to authenticate against payed relays and deliver the kind 9735 note. Relays would need to add a check of the delegation to their auth workflow.

This adds a little more load as as a relay needs to look for a delegation tag before dropping incoming notes. However there is no need to validate the delegation if the pubkey does not belong to a whitelisted user.

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Good idea or bs?
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fiatjaf 2y ago

Relays can just check if the contents of the zap request are from a whitelisted user and allow based on that. They can do this today, there is no need for anything extra. The ones that do can market themselves as "zap-friendly" and gain more users.

The same approach can also be used for replies, likes etc.

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Petite Badger 2y ago

ah, okay. that makes sense. didn't see that. But without authentication i can reply spam any relay, but thats normal spam handling, I guess.