PITfall v1.0: pool 579 + frozen core-200, T3 gold withheld

README.md

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+---
+license: apache-2.0
+language:
+- en
+task_categories:
+- question-answering
+tags:
+- finance
+- benchmark
+- leakage
+- point-in-time
+- sec-edgar
+- llm-agents
+size_category:
+- 1K<n<10K
+---
+
+# PITfall: a leakage-controlled point-in-time benchmark for financial LLM agents
+
+Deterministically generated from SEC EDGAR as-filed XBRL facts. Every task
+carries an `as_of` date; the only correct answer to a task whose gold was not
+public at `as_of` is "unknown". Forward-estimation (T3) gold values are
+withheld from this export so the realized future cannot enter retrieval
+corpora; the full generator is in the
+[repository](https://github.com/FredXing1/FinTrace) and reproduces every
+task byte-for-byte from public EDGAR data.
+
+## Files
+
+- `pool.jsonl` - full task pool (three families)
+- `core-200.jsonl` - frozen evaluation subset (T1x100 incl. 17 unknown-gold
+  probes / T2x60 / T3x40), sha256 in `manifest.json`
+- `manifest.json` - generator version, seed, pool/core hashes
+
+## Task families
+
+| family | question shape | gold | metric |
+|---|---|---|---|
+| T1 time-gated QA | "as of T, what was X for period P?" | filed <= T value, or `unknown` | 1% rel. tolerance |
+| T2 claim verification | "is this statement correct?" | verdict + evidence accn | verdict + citation |
+| T3 forward estimation | "as of T, estimate next-year X?" | realized value - **withheld** | APE <= 20% |
+
+## Scoring
+
+Deterministic pattern/numeric matching, no LLM judge; report per-family
+accuracy with bootstrap 95% CIs and, for T1 unknown-gold probes, the leakage
+rate (answers matching the realized future value). Harness: `fintrace
+pitfall-run` / `fintrace pitfall-leak` / `fintrace pitfall-walkforward`.
+
+## License
+
+Apache-2.0. Source data: SEC EDGAR (public domain). This benchmark is a
+measurement instrument; nothing in it is investment advice.

manifest.json

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+{
+  "generator_version": "0.1",
+  "frozen_at": "2026-09-25T14:18:26+0800",
+  "seed": 42,
+  "counts": {
+    "pool": 579,
+    "core": 200,
+    "core_by_family": {
+      "T1": 100,
+      "T2": 60,
+      "T3": 40
+    }
+  },
+  "core_sha256": "75bd88164a3b162360d16c4889268ac9c427a81b2fa1f55ceda791f23476443a",
+  "note": "core-200 discipline: all self-run experiments only on this subset",
+  "pool_sha256": "69e1fc798de55375f8fa90900a2864a71b4988d24e672c2719d007b69aadd36a",
+  "gold_withheld": "T3 gold values stripped at publish; request via issue"
+}