> For the complete documentation index, see [llms.txt](https://monopolyprotocolone.gitbook.io/monopolyprotocol-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://monopolyprotocolone.gitbook.io/monopolyprotocol-docs/appendices/data-admission-and-quality-control.md).

# Appendix A Data Admission and Quality Control Disclosures

The protocol prioritizes public data and verifiable information and establishes primary and backup data sources, data validation and exception handling mechanisms. To give market participants greater visibility into data conditions, each event or market entering the market layer should retain queryable records under the following framework. These records serve information disclosure and rule execution; they do not guarantee continuous data availability, error-free data or any market outcome.

| **Disclosure field**          | **Minimum content**                                                                     | **Maintenance principles**                                                                                          |
| ----------------------------- | --------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------- |
| Subject and event identifiers | Market subject, event name, applicable market and rule version identifier.              | Keep consistent with market pages and on-chain or verifiable records.                                               |
| Data sources                  | Primary source, backup source, access method and applicable priority.                   | Disclose before the market opens; source changes follow publicly disclosed exception handling rules.                |
| Data version and time         | Data version, collection or confirmation time, applicable time zone and key timestamps. | Retain historical records sufficient to explain the basis for settlement.                                           |
| Validation status             | Status of checks for completeness, format, time consistency and reasonableness.         | Missing data, conflicts or anomalies trigger a pause, review or postponement under preset rules.                    |
| Anomalies and handling        | Anomaly type, scope of impact, measures taken and subsequent status.                    | Ad hoc subjective judgments must not replace disclosed source priorities and settlement rules.                      |
| Retention and access          | Market-related outcome evidence, review materials and final disposition records.        | Retain necessary verifiable records subject to applicable laws, technical conditions and data service restrictions. |