Polymarket Order Book Dataset Copyright (c) 2026 Dinesh Gopalakrishnan Licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0). The full legal code is in LICENSE. SPDX-License-Identifier: CC-BY-4.0 ATTRIBUTION If you use this dataset, please credit it as: Polymarket Order Book Dataset (2026), Dinesh Gopalakrishnan. Licensed under CC BY 4.0. https://github.com/DineshKumar8399/polymarket-orderbook-dataset DISCLAIMER This dataset is provided for research and educational purposes. It is an independent observational recording of publicly displayed market data; it is not affiliated with, endorsed by, or sourced under any agreement with any exchange or venue. Nothing here is financial advice. Past market behaviour does not predict future market behaviour, and a backtest on this data is not a trading strategy. The data carries several documented collection artifacts — a four-day outage, a column that stops being populated partway through, and time-censored labels among them. Read the "Known issues" section of README.md before training anything on it. The same issues ship as data_quality.parquet so a pipeline can assert on them directly.