{
  "dataset": "sealed-batches",
  "schema_version": "1.0",
  "generated_at": "2026-08-29T10:34:04.382786+00:00",
  "data_card": "/data/",
  "license": "AutoNews 开放数据集使用告知（详见数据卡）",
  "fields": [
    {
      "name": "code",
      "description": "批次号"
    },
    {
      "name": "sealed_at",
      "description": "封存时间，ISO 8601"
    },
    {
      "name": "prediction_count",
      "description": "批内预测条数"
    },
    {
      "name": "merkle_root",
      "description": "批次 Merkle 根哈希"
    },
    {
      "name": "git_commit",
      "description": "Git 时间戳锚定提交；可为空"
    },
    {
      "name": "tsa_serial",
      "description": "RFC 3161 时间戳编号；可为空"
    },
    {
      "name": "tsa_time",
      "description": "TSA 签发时间；可为空"
    },
    {
      "name": "tsa_file",
      "description": "TSA 回执文件相对路径；可为空"
    },
    {
      "name": "source_file",
      "description": "封存原始文件相对路径；可为空"
    },
    {
      "name": "note",
      "description": "批次说明；可为空"
    },
    {
      "name": "manifest_url",
      "description": "逐条哈希清单的站内相对地址"
    }
  ],
  "records": [
    {
      "code": "2026-08-001",
      "sealed_at": "2026-07-31T16:00:00+00:00",
      "prediction_count": 10,
      "merkle_root": "11a6f08c7f2c6eb2373142db66ca812defd4bc16f65bc4b859c4c4ff17475dff",
      "git_commit": "14a0b2be2e18e77aa89ee1623a63b53863273ba9",
      "tsa_serial": "0x6871293",
      "tsa_time": "2026-07-27T13:04:53+00:00",
      "tsa_file": "data/ledger/2026-08-batch-001.tsr",
      "source_file": "data/ledger/2026-08-batch-001.md",
      "note": "预测封存 · 批次 2026-08-001",
      "manifest_url": "/ledger/2026-08-001.json"
    }
  ]
}