Soatok Dreamseeker on Nostr: nprofile1q…7eaqy Because the seed is an input used with an XOF (Extensible Output ...

nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqslstxc5r5m8dx0vkteha5gp8q9v9pzvxsfqyard0pvevadus4v7qh7eaqy (nprofile…eaqy) Because the seed is an input used with an XOF (Extensible Output Function), whose output is used to derive the expanded key.

If you replay the algorithm with the same, shorter input, you will get the same output. (That step is deterministic.)