{
  "message_signature": {
    "schema": "SR-HttpMessageSignature-v1.7",
    "header_standards": {
      "signature_input": "sig1=(\"@method\" \"@authority\" \"@path\" \"content-type\" \"x-agent-timestamp\");keyid=\"LLU9AQt4chCkV6/TBAUxeUSc4nbkN5pBKrZ9V7MYedQ=\";alg=\"ed25519\"",
      "signature": "sig1=:H9CklUvJmdfLk93mNdfLzPlK93mV4Nd9Dk3JvMdf8Lk...:"
    },
    "required_components": {
      "headers": ["X-Agent-Timestamp", "Content-Type", "Host"],
      "method_routing_bound": ["POST", "PUT"],
      "replay_window_seconds": 60
    },
    "verification": {
      "conformance": "RFC-9421",
      "signature_header": "Signature",
      "signature_input_header": "Signature-Input",
      "verification_endpoint": "https://self-radiance-notary.selfradiance.workers.dev"
    }
  }
}