{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://meshcognition.org/spec/mmp/schema/tether-attestation.schema.json",
  "title": "MMP tether attestation \u2014 mmp-tether-v1 (\u00a715.8)",
  "type": "object",
  "required": [
    "of",
    "anchor",
    "kernelId",
    "drift",
    "verdict",
    "by",
    "at"
  ],
  "additionalProperties": true,
  "properties": {
    "of": {
      "type": "string",
      "description": "Content-address key of the remix this attestation covers"
    },
    "anchor": {
      "type": "string",
      "description": "Content-address key of the lineage anchor evaluated against"
    },
    "kernelId": {
      "type": "string",
      "description": "Kernel the verdict was made in; verdicts comparable iff equal (\u00a715.8)"
    },
    "drift": {
      "type": "number",
      "description": "Content-only \u03b1-weighted drift; signed fixed to six fractional digits"
    },
    "verdict": {
      "enum": [
        "tethered",
        "severed"
      ]
    },
    "by": {
      "type": "string",
      "description": "Integrator nodeId; signature verifies against its resolved key (\u00a76.6)"
    },
    "at": {
      "type": "integer",
      "description": "Integrator time, Unix ms"
    },
    "sig": {
      "type": "string",
      "description": "base64url Ed25519 over the mmp-tether-v1 payload"
    },
    "sigAlg": {
      "const": "ed25519"
    }
  }
}