Spec: license / IPR ?

[barthanssens]

I assume that the HDT spec itself, and all the other algorithms / specs mentioned, can be freely implemented (no royalties to be paid, patents etc) ?

Is the documentation itself licensed under Creative Commons (CC-BY, CC0 ...) or another license ?

It would suggest to add a "legal" section to the spec to clarify these issues.

[artob]

Ideally it would be Creative Commons Zero, but that's a question for @webdata.