{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://wanxiang.ai/contracts/play-loop/input-lock-probe.schema.json",
  "title": "InputLockProbeV1",
  "type": "object",
  "required": [
    "schemaVersion", "artifactHash", "transactionId", "transactionHash", "probeSeed",
    "controlFrameRef", "controlFrameHash", "probeFrameRef", "probeFrameHash",
    "lockedStateUnchanged", "settleInputRestored", "status"
  ],
  "properties": {
    "schemaVersion": { "const": "InputLockProbe/1" },
    "artifactHash": { "$ref": "#/$defs/sha256" },
    "transactionId": { "type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9._-]{0,127}$" },
    "transactionHash": { "$ref": "#/$defs/sha256" },
    "probeSeed": { "type": "integer", "minimum": 0 },
    "controlFrameRef": { "$ref": "#/$defs/ref" },
    "controlFrameHash": { "$ref": "#/$defs/sha256" },
    "probeFrameRef": { "$ref": "#/$defs/ref" },
    "probeFrameHash": { "$ref": "#/$defs/sha256" },
    "lockedStateUnchanged": { "const": true },
    "settleInputRestored": { "const": true },
    "status": { "const": "pass" }
  },
  "additionalProperties": false,
  "$defs": {
    "sha256": { "type": "string", "pattern": "^[0-9a-f]{64}$" },
    "ref": { "type": "string", "minLength": 1, "pattern": "^(?!/).+$" }
  }
}