---
license: apache-2.0
---

# MedMCQA practice corpus (build artefact)

Build output of the ETL in
[medmcqa-practice](https://github.com/). Not the original dataset - this is a
normalised, validated SQLite build of it, published here only so a Git-based
host can download it at deploy time (it is too large for a Git repository).

| File | Purpose |
|---|---|
| `corpus.sqlite` | 186,791 questions + FTS5 index |
| `manifest.json` | Build metadata, counts, and the answer-key checksum |
| `facets.json` | Subject/topic counts |

The application verifies `manifest.json`'s `answerKeyHash` against the
database at startup and refuses to serve questions if they disagree, so a
corrupted or substituted download fails closed rather than showing wrong answers.

Source data: MedMCQA (Pal, Umapathi & Sankarasubbu, PMLR v174, 2022) -
<https://github.com/medmcqa/medmcqa>, Apache-2.0.

**Not clinical guidance.** Exam-preparation material containing known errata.