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README.md

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 license: cc-by-4.0
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+
+## Description
+
+This dataset accompanies the paper *Why Not Fix It Once and for All? An Empirical Study of Multiple Patches for Vulnerability Fixes in Open-Source Software*. It contains 1,581 manually annotated and cleaned records of vulnerabilities fixed by multiple patches.
+
+## Data Structure
+
+MultiPatch is stored in `jsonl` format. Each line corresponds to one CVE and contains the following keys.
+
+```json
+{
+  "CVE_ID": "the CVE identifier, e.g. CVE-2021-3156, type: str",
+  "category": "one or more categories from the list below, type: str",
+  "patches": [
+    {
+      "commit_url": "URL of the fix commit, type: str",
+      "diff_code": "the hash value of the parent commit, type: str",
+      "owner": "owner of the repo, type: str", 
+      "repo_name": "repo name, type: str", 
+      "commit_message": "commit message, type: str"
+    }
+  ]
+}
+```
+
+**Category.** A CVE may belong to one or more of the following categories:
+
+- `Fixes for Multiple Locations Across Different Branches or Projects`
+- `Incomplete Fixes`
+- `Fix and Documentation Updates`
+- `Bug-Introducing Fixes`
+- `Multi-Location Fixes`
+- `Workaround and Formal Fix`
+
+## Citation
+
+```bibtex
+@article{qi2026not,
+  title={Why Not Fix It Once and for All? An Empirical Study of Multiple Patches for Vulnerability Fixes in Open-Source Software},
+  author={Qi, Weiliang and Li, Youpeng and Wang, Xinda},
+  journal={arXiv preprint arXiv:2607.13206},
+  year={2026}
+}
+```