proto.cairnobs.org and its three subdomains were deleted from Cloudflare
on 2026-09-04 when the prototype was retired and its host destroyed. The
names, types, TTLs and the grey-cloud setting existed only in that zone,
so with the zone entries gone there was nothing left to rebuild from --
and the next prototype would have been reconstructed by guesswork.
Named retired-prototype-dns.json rather than proto-*: proto/ in this
repository is protobuf, and a file in deploy/ starting with proto- reads
as generated definitions rather than a retired environment.
Records only. The mTLS material is deliberately not here: the CA and
server certificate lived on the destroyed host and the six field agents
were uninstalled with their client certs the same day. The next
prototype issues its own CA and re-enrols against it, which the file
says so nobody plans around reusing something that no longer exists.
