{
  "registry": "MAKO GUARD signer registry",
  "semantics": "append-only; window = [effective_from, next entry's effective_from); newest open-ended; receipts verify against the signer whose window covers timestamp_response_ms",
  "signers": [
    {
      "signer": "0xAfd22aF2f9592Ab3d230D32673B20EEed2C53606",
      "effective_from": "2026-06-11T01:54:36.003971+00:00",
      "replaces": null
    },
    {
      "signer": "0xFFa2363392359f97d7204a4C94578B8A27774e0f",
      "effective_from": "2026-06-11T02:51:12.499794+00:00",
      "replaces": "0xAfd22aF2f9592Ab3d230D32673B20EEed2C53606",
      "reason": "env file replaced during Neon DSN edit; prior key unrecoverable"
    }
  ]
}