{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://github.com/yurisyl/targetspace-bench/schemas/evidence_manifest.schema.json",
  "title": "TargetSpace Evidence Manifest",
  "description": "Declares what evidence a system was permitted to use for a participant, at which tier and time window. Used for audit and leakage control. In this release all evidence is synthetic.",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "participant_id",
    "evidence_tier",
    "evidence_start_time",
    "evidence_end_time",
    "modalities",
    "synthetic"
  ],
  "properties": {
    "participant_id": { "type": "string", "minLength": 1 },
    "evidence_tier": {
      "type": "string",
      "enum": ["L0", "L1", "L2", "L3", "L4", "L5"]
    },
    "evidence_start_time": { "type": "string", "format": "date-time" },
    "evidence_end_time": {
      "type": "string",
      "format": "date-time",
      "description": "Latest evidence timestamp. For a valid submission this must not exceed any forecast's evidence_cutoff_time."
    },
    "modalities": {
      "type": "array",
      "items": { "type": "string" },
      "minItems": 1,
      "uniqueItems": true
    },
    "source_summary": { "type": "string" },
    "synthetic": {
      "type": "boolean",
      "description": "True if the evidence is synthetic. Must be true in this release."
    },
    "privacy_notes": { "type": "string" },
    "hash_manifest": {
      "type": "object",
      "description": "Optional map from logical evidence source to a content hash, for integrity/audit.",
      "additionalProperties": { "type": "string" }
    },
    "metadata": { "type": "object" }
  }
}