{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schema.keysingate.com/core/v2/closure.json",
  "title": "BlockClosure - a block closure statement (Section 12)",
  "description": "The three sets MUST cover the block in full and be pairwise disjoint. A schema cannot express this - it is checked by the implementation, and separately: equality of the sum of lengths to the block size lets an overlap through together with a gap. For class heavy, used_not_submitted must be empty.",
  "type": "object",
  "properties": {
    "@context": {
      "$ref": "common.json#/$defs/context"
    },
    "type": {
      "const": "BlockClosure"
    },
    "v": {
      "$ref": "common.json#/$defs/version"
    },
    "emission": {
      "type": "string",
      "pattern": "^ksg:em:[0-9]+$"
    },
    "block": {
      "$ref": "common.json#/$defs/range"
    },
    "used_submitted": {
      "type": "array",
      "items": {
        "$ref": "common.json#/$defs/range"
      }
    },
    "used_not_submitted": {
      "description": "The act was issued but never submitted to the log - it proves no time.",
      "type": "array",
      "items": {
        "$ref": "common.json#/$defs/range"
      }
    },
    "cancelled": {
      "type": "array",
      "items": {
        "$ref": "common.json#/$defs/range"
      }
    },
    "closed_at": {
      "$ref": "common.json#/$defs/timestamp"
    },
    "signatures": {
      "$ref": "common.json#/$defs/signatures"
    }
  },
  "required": [
    "@context",
    "type",
    "v",
    "emission",
    "block",
    "used_submitted",
    "used_not_submitted",
    "cancelled",
    "closed_at",
    "signatures"
  ],
  "additionalProperties": false
}