{
  "sample_kind": "synthetic",
  "sample_id": "compatibility-v1",
  "note": "Synthetic compatibility sample. Eight fixed, fabricated rows with demo identifiers and a 2000-01-01 UTC clock. No recorded market history. For schema and integration checks, not for evaluating coverage, liquidity, completeness or strategy performance. Purchased archive versions may have different schemas.",
  "source_table": "polymarket_book",
  "schema": [
    {
      "name": "asset_id",
      "type": "String"
    },
    {
      "name": "condition_id",
      "type": "String"
    },
    {
      "name": "slug",
      "type": "String"
    },
    {
      "name": "base_asset",
      "type": "LowCardinality(String)"
    },
    {
      "name": "market_type",
      "type": "LowCardinality(String)"
    },
    {
      "name": "exch_ts_ms",
      "type": "UInt64"
    },
    {
      "name": "recv_ts_ms",
      "type": "UInt64"
    },
    {
      "name": "hash",
      "type": "String"
    },
    {
      "name": "bid_prices",
      "type": "Array(Float64)"
    },
    {
      "name": "bid_sizes",
      "type": "Array(Float64)"
    },
    {
      "name": "ask_prices",
      "type": "Array(Float64)"
    },
    {
      "name": "ask_sizes",
      "type": "Array(Float64)"
    }
  ],
  "rows": [
    {
      "asset_id": "0",
      "condition_id": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "slug": "demo-market-001",
      "base_asset": "demo",
      "market_type": "demo",
      "exch_ts_ms": 946684800000,
      "recv_ts_ms": 946684800025,
      "hash": "demo-observation-001",
      "bid_prices": [
        0.4,
        0.39
      ],
      "bid_sizes": [
        100.0,
        50.0
      ],
      "ask_prices": [
        0.44,
        0.45
      ],
      "ask_sizes": [
        100.0,
        50.0
      ]
    },
    {
      "asset_id": "0",
      "condition_id": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "slug": "demo-market-001",
      "base_asset": "demo",
      "market_type": "demo",
      "exch_ts_ms": 946684801000,
      "recv_ts_ms": 946684801025,
      "hash": "demo-observation-002",
      "bid_prices": [
        0.41,
        0.4
      ],
      "bid_sizes": [
        105.0,
        50.0
      ],
      "ask_prices": [
        0.45,
        0.46
      ],
      "ask_sizes": [
        105.0,
        50.0
      ]
    },
    {
      "asset_id": "0",
      "condition_id": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "slug": "demo-market-001",
      "base_asset": "demo",
      "market_type": "demo",
      "exch_ts_ms": 946684802000,
      "recv_ts_ms": 946684802025,
      "hash": "demo-observation-003",
      "bid_prices": [
        0.42,
        0.41
      ],
      "bid_sizes": [
        110.0,
        50.0
      ],
      "ask_prices": [
        0.46,
        0.47
      ],
      "ask_sizes": [
        110.0,
        50.0
      ]
    },
    {
      "asset_id": "0",
      "condition_id": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "slug": "demo-market-001",
      "base_asset": "demo",
      "market_type": "demo",
      "exch_ts_ms": 946684803000,
      "recv_ts_ms": 946684803025,
      "hash": "demo-observation-004",
      "bid_prices": [
        0.41,
        0.4
      ],
      "bid_sizes": [
        115.0,
        50.0
      ],
      "ask_prices": [
        0.45,
        0.46
      ],
      "ask_sizes": [
        115.0,
        50.0
      ]
    },
    {
      "asset_id": "0",
      "condition_id": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "slug": "demo-market-001",
      "base_asset": "demo",
      "market_type": "demo",
      "exch_ts_ms": 946684804000,
      "recv_ts_ms": 946684804025,
      "hash": "demo-observation-005",
      "bid_prices": [
        0.4,
        0.39
      ],
      "bid_sizes": [
        120.0,
        50.0
      ],
      "ask_prices": [
        0.44,
        0.45
      ],
      "ask_sizes": [
        120.0,
        50.0
      ]
    },
    {
      "asset_id": "0",
      "condition_id": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "slug": "demo-market-001",
      "base_asset": "demo",
      "market_type": "demo",
      "exch_ts_ms": 946684805000,
      "recv_ts_ms": 946684805025,
      "hash": "demo-observation-006",
      "bid_prices": [
        0.42,
        0.41
      ],
      "bid_sizes": [
        125.0,
        50.0
      ],
      "ask_prices": [
        0.46,
        0.47
      ],
      "ask_sizes": [
        125.0,
        50.0
      ]
    },
    {
      "asset_id": "0",
      "condition_id": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "slug": "demo-market-001",
      "base_asset": "demo",
      "market_type": "demo",
      "exch_ts_ms": 946684806000,
      "recv_ts_ms": 946684806025,
      "hash": "demo-observation-007",
      "bid_prices": [
        0.43,
        0.42
      ],
      "bid_sizes": [
        130.0,
        50.0
      ],
      "ask_prices": [
        0.47,
        0.48
      ],
      "ask_sizes": [
        130.0,
        50.0
      ]
    },
    {
      "asset_id": "0",
      "condition_id": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "slug": "demo-market-001",
      "base_asset": "demo",
      "market_type": "demo",
      "exch_ts_ms": 946684807000,
      "recv_ts_ms": 946684807025,
      "hash": "demo-observation-008",
      "bid_prices": [
        0.42,
        0.41
      ],
      "bid_sizes": [
        135.0,
        50.0
      ],
      "ask_prices": [
        0.46,
        0.47
      ],
      "ask_sizes": [
        135.0,
        50.0
      ]
    }
  ]
}