{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://anulum.li/schemas/scpn-phase-orchestrator/mif-merge-compression-handoff-1.0.0.schema.json",
  "title": "SCPN Phase Orchestrator MIF merge-compression review handoff",
  "description": "Digest-sealed SCPN-MIF-CORE simulation evidence and U0 semantics. This envelope is never actionable.",
  "type": "object",
  "required": ["payload", "payload_sha256", "schema", "schema_version"],
  "additionalProperties": false,
  "properties": {
    "payload": {"$ref": "#/$defs/HandoffPayload"},
    "payload_sha256": {"$ref": "#/$defs/Sha256"},
    "schema": {
      "const": "scpn-phase-orchestrator.mif-merge-compression-handoff.v1"
    },
    "schema_version": {"const": "1.0.0"}
  },
  "$defs": {
    "Sha256": {
      "type": "string",
      "pattern": "^[0-9a-f]{64}$"
    },
    "GitRevision": {
      "type": "string",
      "pattern": "^[0-9a-f]{40}$"
    },
    "Identifier": {
      "type": "string",
      "pattern": "^[A-Za-z][A-Za-z0-9_.:\\-]{0,127}$"
    },
    "U0Envelope": {
      "$ref": "https://anulum.li/schemas/scpn-phase-orchestrator/reactor-semantics-u0-1.0.0.schema.json"
    },
    "HandoffPayload": {
      "type": "object",
      "allOf": [
        {
          "if": {"properties": {"registry_version": {"const": "1.0.0"}}},
          "then": {"properties": {"registry_digest": {"const": "786d9542ce76c56dd7748fa948b17efed6c073525e527ce90e6d5e29a2d00090"}}}
        },
        {
          "if": {"properties": {"registry_version": {"const": "1.1.0"}}},
          "then": {"properties": {"registry_digest": {"const": "6741f25892d81b24aa621ee4f56b5e785e8323eca6ccf9d9009ce2c8e53f4912"}}}
        }
      ],
      "required": [
        "actionable",
        "authority",
        "event_id",
        "observables",
        "phase_relations",
        "reactor_context",
        "regime",
        "registry_digest",
        "registry_version",
        "semantics",
        "source_envelope_json",
        "source_envelope_sha256",
        "source_project",
        "source_revision",
        "source_schema",
        "u0_schema_version"
      ],
      "additionalProperties": false,
      "properties": {
        "actionable": {"const": false},
        "authority": {"const": "review_only"},
        "event_id": {"$ref": "#/$defs/Identifier"},
        "observables": {
          "type": "array",
          "minItems": 1,
          "items": {
            "allOf": [
              {"$ref": "#/$defs/U0Envelope"},
              {
                "type": "object",
                "properties": {"contract_type": {"const": "observable_descriptor"}}
              }
            ]
          }
        },
        "phase_relations": {
          "type": "array",
          "maxItems": 0
        },
        "reactor_context": {
          "allOf": [
            {"$ref": "#/$defs/U0Envelope"},
            {
              "type": "object",
              "properties": {"contract_type": {"const": "reactor_context"}}
            }
          ]
        },
        "regime": {
          "allOf": [
            {"$ref": "#/$defs/U0Envelope"},
            {
              "type": "object",
              "properties": {"contract_type": {"const": "regime_estimate"}}
            }
          ]
        },
        "registry_digest": {"$ref": "#/$defs/Sha256"},
        "registry_version": {"enum": ["1.0.0", "1.1.0"]},
        "semantics": {
          "type": "array",
          "minItems": 1,
          "items": {
            "allOf": [
              {"$ref": "#/$defs/U0Envelope"},
              {
                "type": "object",
                "properties": {"contract_type": {"const": "phase_semantic_record"}}
              }
            ]
          }
        },
        "source_envelope_json": {"type": "string", "minLength": 2},
        "source_envelope_sha256": {"$ref": "#/$defs/Sha256"},
        "source_project": {"const": "SCPN-MIF-CORE"},
        "source_revision": {"$ref": "#/$defs/GitRevision"},
        "source_schema": {
          "const": "scpn-mif-core.merge-compression-observation.v1"
        },
        "u0_schema_version": {"const": "1.0.0"}
      }
    }
  }
}