{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:pairwise-nym-binding-fact:v1",
  "title": "PairwiseNymBindingFact v1",
  "description": "Append-only local event recording observed pairwise nym continuity for one contact and context.",
  "type": "object",
  "additionalProperties": true,
  "x-dia-workflow": "project",
  "x-dia-status": "draft",
  "x-dia-basis": [
    "doc/project/40-proposals/065-local-relationship-layer.md",
    "doc/project/60-solutions/032-local-relationship-layer/032-local-relationship-layer.md"
  ],
  "required": ["schema", "schema/v", "fact/id", "contact/ref", "context/kind", "event/kind", "nym/value", "event/at", "detected/by", "tx/id"],
  "properties": {
    "schema": { "const": "pairwise-nym-binding-fact.v1" },
    "schema/v": { "const": 1 },
    "fact/id": { "type": "string", "pattern": "^fact:pairwise-nym-binding:[a-z0-9][a-z0-9:-]*$" },
    "contact/ref": { "type": "string", "pattern": "^local-contact:[A-Za-z0-9_-]+$" },
    "context/kind": { "$ref": "#/$defs/context_kind" },
    "context/ref": { "type": "string", "minLength": 1, "maxLength": 256 },
    "event/kind": { "type": "string", "enum": ["observed", "rotated-into", "retired"] },
    "nym/value": { "type": "string", "minLength": 1, "maxLength": 256 },
    "prior/nym": { "type": "string", "minLength": 1, "maxLength": 256 },
    "event/at": { "type": "string", "format": "date-time" },
    "detected/by": { "type": "string", "minLength": 1, "maxLength": 160 },
    "evidence/ref": { "type": "string", "minLength": 1, "maxLength": 256 },
    "tx/id": { "type": "string", "minLength": 1, "maxLength": 160 }
  },
  "$defs": {
    "context_kind": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9.-]*(?:/[a-z][a-z0-9.-]*)*$"
    }
  }
}