Current AIR specification isn't very good

[Radtoo]

I think someone will call their source "safetensor". Or use brahmic/chinese/... script which most of the world can't read/type/distinguish with various devices not even having the correct glyphs installed. Or start to use different naming conventions for types of resources. Maybe people will have different ideas about whether id should be unique on its own or if they have 10x the same id as long as the format is different. Or many of the other things that typically ruin any broader usefulness/usability.

Why not simply go with organization:hashtype=alphanumeric_hash and just suggest using SHA-256 unless there is a reason not to?

If on the other hand having human-readable information is the point of this scheme, the human-readable parts likely shouldn't be optional and they should probably come from a clearly defined list of possible options so that humans can (in a single authoritative place) go look up what they mean and what all the options are.