{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:replication-summary:v1",
  "title": "ReplicationSummary v1",
  "description": "Bounded anti-entropy summary for one signed immutable fact dataset.",
  "type": "object",
  "additionalProperties": false,
  "x-dia-workflow": "project",
  "x-dia-status": "draft",
  "x-dia-basis": ["doc/project/40-proposals/081-horizontal-protocol-primitives.md"],
  "required": ["schema", "schema/v", "summary/id", "dataset/id", "dataset/epoch", "replication/profile-id", "source/node-id", "high-water/cursor", "records/count", "digest", "generated/at", "expires/at"],
  "properties": {
    "schema": { "const": "replication-summary.v1" },
    "schema/v": { "const": 1 },
    "summary/id": { "type": "string", "pattern": "^replication-summary:[A-Za-z0-9:_-]+$", "maxLength": 180 },
    "dataset/id": { "type": "string", "minLength": 1, "maxLength": 180, "pattern": "^[^\\s]+$" },
    "dataset/epoch": { "type": "integer", "minimum": 0 },
    "replication/profile-id": { "type": "string", "minLength": 1, "maxLength": 180, "pattern": "^[A-Za-z0-9_.:@-]+$" },
    "source/node-id": { "type": "string", "pattern": "^node:[^\\s]+$", "maxLength": 256 },
    "federation/id": { "type": "string", "minLength": 1, "maxLength": 180, "pattern": "^[A-Za-z0-9_.:-]+$" },
    "high-water/cursor": { "$ref": "#/$defs/cursor" },
    "retention/floor": { "$ref": "#/$defs/cursor" },
    "records/count": { "type": "integer", "minimum": 0 },
    "tombstones/high-water": { "$ref": "#/$defs/cursor" },
    "digest": { "$ref": "#/$defs/digest_profile" },
    "generated/at": { "type": "string", "format": "date-time" },
    "expires/at": { "type": "string", "format": "date-time" },
    "signature": { "type": "object", "additionalProperties": true }
  },
  "$defs": {
    "cursor": { "type": "string", "pattern": "^cursor:[a-z][a-z0-9-]{0,63}:[^\\s]+$", "maxLength": 600 },
    "digest_profile": {
      "type": "object",
      "additionalProperties": false,
      "required": ["profile", "value"],
      "properties": {
        "profile": { "const": "canonical-sequence-sha256-v1" },
        "value": { "type": "string", "pattern": "^sha256:[A-Za-z0-9_-]{32,}$", "maxLength": 128 }
      }
    }
  }
}