Section 7.4.1:
* "The size of the registered SID block. The size MUST be one million (1 000 000) SIDs." -- Seems a waste of a registry column if it's always this one value. Maybe this should instead be the highest SID in the block?
* "The information associated to the Organization name should not be publicly visible in the registry, but should be available." -- Why not, and available how?