@fentiger @helge We can use custom URI scheme instead of DID URLs. I included this option in the proposal:
https://codeberg.org/fediverse/fep/src/branch/main/fep/ef61/fep-ef61.md#url-scheme
ap://did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK/objects/123However, my URL library doesn't parse it at all and says that z6Mk... is not a valid port number.