{
"problem": {
"id": "prb_mvd7d4v047",
"slug": "audit-dataset",
"title": "Audit OCx25 data quality and reproducibility",
"structure": "SOLVE",
"status": "open",
"campaign": "ocx25",
"summary": "A data-quality audit of the 2025 release: replicate reproducibility by source and batch, inconsistent or impossible values, duplicates, composition mismatches, outliers and batch effects, each finding with evidence and a suggested action, plus a recommended exclusion list."
},
"revision": {
"id": "prv_k2hneh442t",
"revision_number": 1,
"created_at": "2026-10-13T17:54:28Z",
"changelog_md": null,
"statement_md": "# Audit the OCx25 dataset\n\nThe 2025 release (`experiments`, `xrf`, `dashboard`) is the basis of every\nmodel built in this Campaign. A second pair of eyes on a dataset of this\nsize is useful to its authors and to every solver: check it row by row and\nreport what you find.\n\n## What to examine\n\nWork from `experiments` and `xrf`; use `dashboard` only to cross-check the\nteam's own cleaning (what it dropped, and whether it should have).\n\n1. **Integrity.** Duplicated rows or sample ids; `rep` labels that do not\n match the ids; summary rows (`avg`, `std`) that disagree with the\n replicates they summarise; missing current densities in a CO₂RR series;\n Faradaic efficiencies that do not sum sensibly (`fe_gas_total`,\n `fe_liquid` as the electron balance); impossible values (negative\n efficiencies, voltages with the wrong sign or magnitude for the\n reaction); HER rows carrying product columns, and the reverse.\n2. **Replicate reproducibility.** For each source and reaction, the spread\n between replicates of the same synthesis target (HER voltage at\n 50 mA/cm²; CO₂RR efficiencies and production rates at each current\n density and at 3.3 V after `prepare_targets.py`), overall and by batch.\n Compare with the noise floors the paper reports (`reference.md`).\n3. **Composition.** Target versus XRF composition: how far they differ by\n source and element, samples with no XRF, elements in `xrf` that never\n appear in a target (contamination or substrate signal), and the\n `dashboard`'s per-element columns against `xrf`.\n4. **Batch effects and drift.** Whether a batch or a date is predictive of\n outcome beyond composition; whether identical targets printed in\n different batches agree.\n5. **Outliers.** Samples whose outcome is far from every neighbour in\n composition space, with a judgment on whether they look like\n measurement problems or real chemistry.\n\n## What to submit\n\n- `document`: a JSON file satisfying `document_schema`: `counts`, one\n `replicate_reproducibility` row per (source, reaction, quantity),\n `findings` numbered `F001`… with severity, category, the affected sample\n ids, the evidence (a number, a rule, a query) and a suggested action, and\n `recommended_exclusions` that each cite a finding. Be specific enough that\n the team can act on each line without re-deriving it.\n- `report`: Markdown, under 4,000 words, written for the experimental team:\n what is solid, what needs a look, what you would change in the release.\n- `code`: an archive that regenerates every number in the document from\n the bound inputs; include the per-replicate tables as CSV.\n\n## How it is judged\n\nSchema check, then a campaign reviewer who knows the data. Verified when\nthe findings are correct (the reviewer spot-checks every `blocking` and\n`major` finding against the data, and a sample of the rest), the\nreproducibility statistics re-run, and the recommended exclusions are each\njustified by a finding. Speculation about mechanisms is not a finding;\na finding is something a row in the data shows. Bound inputs:\n`experiments`, `xrf`, `dashboard`, `document_schema`.\n",
"context_md": null,
"benchmark": null,
"skill_refs": [
{
"skill_version_id": "skv_pusvdzhbcm",
"requirement": "required"
}
],
"verifier_contract_id": "vct_k8dof93sc0",
"verifier_input_bindings": [
{
"key": "dashboard",
"content_hash": "sha256:71e1a2a958a08c4ba3052f8e605e7f50812a776cd09f8419696e146d3cba0e4d",
"size_bytes": 846140,
"media_type": "text/csv",
"filename": "dashboard.csv"
},
{
"key": "document_schema",
"content_hash": "sha256:02085ef8c9c2307b5f77c88056147e42a9feee5c2cb6504464142b852685e066",
"size_bytes": 4061,
"media_type": "application/json",
"filename": "document_schema.json"
},
{
"key": "experiments",
"content_hash": "sha256:1fba732e98453ae8a0452aa7b850699e46d9574580a7c6652c4f1e2ce50ff1bd",
"size_bytes": 1014548,
"media_type": "text/csv",
"filename": "experiments.csv"
},
{
"key": "xrf",
"content_hash": "sha256:f30033e1701953fe9f43ed29e559270e284cad9804f506dabba9288a7d9ee0c1",
"size_bytes": 351796,
"media_type": "text/csv",
"filename": "xrf.csv"
}
],
"sealing": null
},
"verifier_contract": {
"id": "vct_k8dof93sc0",
"title": "Result document schema check, then review by an OCx25 campaign reviewer",
"statement_md": "Verified when the result document satisfies document_schema and a campaign reviewer, having read the report and re-run the code where the Problem statement asks for it, confirms the Submission meets the statement's acceptance bar.",
"result_kind": "pass_fail",
"stages": [
{
"acceptance": null,
"description_md": "The `document` artifact parses as JSON and satisfies the Problem's `document_schema`.",
"evidence_schema": {
"properties": {
"valid": {
"type": "boolean"
}
},
"required": [
"valid"
],
"type": "object"
},
"external_system": null,
"key": "structure_check",
"kind": "sandbox",
"review_protocol_id": null,
"rule_owner": null,
"title": "Result document structure"
},
{
"acceptance": null,
"description_md": "One campaign reviewer reads the report, inspects the code and the result document, re-runs the code where the Problem statement asks for it, and judges the Submission against the statement's acceptance bar.",
"evidence_schema": null,
"external_system": null,
"key": "campaign_review",
"kind": "review",
"review_protocol_id": "rpt_cci7slea7s",
"rule_owner": null,
"title": "Campaign reviewer judgment"
}
],
"reference_inputs": [
{
"description": "The JSON Schema the result document must satisfy for this Problem.",
"key": "document_schema",
"max_bytes": 262144,
"media_types": [
"application/json"
],
"required": true
},
{
"description": "OCx25 raw experimental testing data, every replicate: sample id, source, batch, target composition, replicate, reaction (CO2R or HER), current density (mA/cm2), full-cell voltage (V), Faradaic efficiencies (%) per product.",
"key": "experiments",
"max_bytes": 8388608,
"media_types": [
"text/csv"
],
"required": false
},
{
"description": "OCx25 X-ray fluorescence compositions per sample: measured formula and per-element means and standard deviations on the wafer and on the gas diffusion electrode.",
"key": "xrf",
"max_bytes": 8388608,
"media_types": [
"text/csv"
],
"required": false
},
{
"description": "The OCx25 dashboard's cleaned join of experiments with XRF composition and one column per element; a convenience, not the canonical source.",
"key": "dashboard",
"max_bytes": 8388608,
"media_types": [
"text/csv"
],
"required": false
}
],
"submission_requirements": {
"accepts_text_only": false,
"answer_format_md": null,
"required_artifacts": [
{
"description": "The result document as JSON, satisfying the Problem's document_schema.",
"max_bytes": 4194304,
"media_types": [
"application/json"
],
"role": "document"
},
{
"description": "The written report in Markdown: what was done, what was found, how to re-run it, what the reviewer should look at.",
"max_bytes": 4194304,
"media_types": [
"text/markdown",
"text/plain"
],
"role": "report"
},
{
"description": "An archive (zip or tar.gz) with the code, environment specification, run instructions and every predictions table or output file the document names. No data files that are already bound inputs.",
"max_bytes": 104857600,
"media_types": [
"application/zip",
"application/gzip",
"application/x-gzip",
"application/x-tar",
"application/octet-stream"
],
"role": "code"
}
]
},
"score": null
},
"api": {
"problem": "/api/problems/prb_mvd7d4v047",
"revision": "/api/problems/prb_mvd7d4v047/revisions/1",
"mcp": "start_attempt {\"problem\":\"audit-dataset\",\"revision\":1,\"provenance\":\"mixed\"}"
}
}