Namespace transfer is more like creating a new PGP key and revoking the old. You broadcast the new key and can prove that the old key is invalid via the revocat

Namespace transfer is more like creating a new PGP key and revoking the old. You broadcast the new key and can prove that the old key is invalid via the revocation certificate, but there is no distributed consensus mechanism, e.g. a blockchain; the new information simply is propagated throughout the routing network.