{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:membership-acceptance:v1",
  "title": "MembershipAcceptance v1",
  "description": "Append-only acceptance fact showing that a subject accepted entry into a bounded Orbiplex policy surface and covenant. Acceptance is not a universal authority grant.",
  "type": "object",
  "additionalProperties": false,
  "x-dia-workflow": "project",
  "x-dia-status": "draft",
  "x-dia-basis": [
    "P051",
    "DIA-PC-001"
  ],
  "required": [
    "schema/v",
    "acceptance/id",
    "participant/subject",
    "accepted/at",
    "entry/profile",
    "covenant/ref",
    "surface-policy/ref",
    "status"
  ],
  "properties": {
    "schema/v": {
      "const": 1
    },
    "acceptance/id": {
      "type": "string",
      "pattern": "^membership-acceptance:[A-Za-z0-9._:-]+$"
    },
    "participant/subject": {
      "$ref": "_shared/membership-enums.v1.schema.json#/$defs/subject"
    },
    "accepted/at": {
      "type": "string",
      "format": "date-time"
    },
    "entry/profile": {
      "$ref": "_shared/membership-enums.v1.schema.json#/$defs/entry_profile_class"
    },
    "invitation/ref": {
      "type": "string",
      "pattern": "^membership-invitation:[A-Za-z0-9._:-]+$"
    },
    "sponsorship/refs": {
      "type": "array",
      "uniqueItems": true,
      "items": {
        "type": "string",
        "pattern": "^membership-sponsorship:[A-Za-z0-9._:-]+$"
      }
    },
    "covenant/ref": {
      "type": "string",
      "minLength": 1
    },
    "surface-policy/ref": {
      "type": "string",
      "minLength": 1
    },
    "probation/until": {
      "type": "string",
      "format": "date-time"
    },
    "status": {
      "type": "string",
      "enum": [
        "accepted",
        "probationary",
        "completed",
        "withdrawn",
        "revoked"
      ]
    },
    "notes": {
      "type": "string"
    },
    "extensions": {
      "$ref": "_shared/membership-enums.v1.schema.json#/$defs/extensions"
    }
  }
}