POST /api/protocol/pohc/attest
Submit a phase + zeqond attestation as observed by the caller's local clock.
Request
{
"node_id": "uuid-or-zid",
"zeqond": 2287439213,
"phase": 0.412,
"operator_root": "sha256-of-operator-set"
}
Response — 200
{ "ok": true, "accepted": true, "drift_ms": 0.7 }
drift_ms is the absolute drift between the submitted phase and the framework's clock, in milliseconds.