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NIP-05: Explicitly requires lowercase for hex keys and names (#2208)

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Vitor Pamplona
2026-02-03 07:57:31 -05:00
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parent 06593632a8
commit 18b948abda
1 changed files with 3 additions and 3 deletions
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05.md
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@@ -6,11 +6,11 @@ Mapping Nostr keys to DNS-based internet identifiers
`final` `optional`
On events of kind `0` (`user metadata`) one can specify the key `"nip05"` with an [internet identifier](https://datatracker.ietf.org/doc/html/rfc5322#section-3.4.1) (an email-like address) as the value. Although there is a link to a very liberal "internet identifier" specification above, NIP-05 assumes the `<local-part>` part will be restricted to the characters `a-z0-9-_.`, case-insensitive.
On events of kind `0` (`user metadata`) one can specify the key `"nip05"` with an [internet identifier](https://datatracker.ietf.org/doc/html/rfc5322#section-3.4.1) (an email-like address) as the value. Although there is a link to a very liberal "internet identifier" specification above, the `<local-part>` part MUST only use characters `a-z0-9-_.`.
Upon seeing that, the client splits the identifier into `<local-part>` and `<domain>` and use these values to make a GET request to `https://<domain>/.well-known/nostr.json?name=<local-part>`.
The result should be a JSON document object with a key `"names"` that should then be a mapping of names to hex formatted public keys. If the public key for the given `<name>` matches the `pubkey` from the `user metadata` event, the client then concludes that the given pubkey can indeed be referenced by its identifier.
The result should be a JSON document object with a key `"names"` that should then be a mapping of names to hex formatted public keys, in lowercase. If the public key for the given `<name>` matches the `pubkey` from the `user metadata` event, the client then concludes that the given pubkey can indeed be referenced by its identifier.
### Example
@@ -73,7 +73,7 @@ For example, if after finding that `bob@bob.com` has the public key `abc...def`,
### Public keys must be in hex format
Keys must be returned in hex format. Keys in NIP-19 `npub` format are only meant to be used for display in client UIs, not in this NIP.
Keys must be returned in hex format, in lowercase. Keys in NIP-19 `npub` format are only meant to be used for display in client UIs, not in this NIP.
### Showing just the domain as an identifier