Pith Number

pith:Q7EXUB7T

pith:2026:Q7EXUB7T7CJRIDS4ZPUCOXFXPI

not attested not anchored not stored refs pending

What Makes a Medical Checker Trainable? Diagnosing Signal Collapse and Reward Hacking in Checker-Guided RAG for Biomedical QA

Chenyu Li, Hang Zhang, Min Gu Kwak, Xizhi Wu, Yanshan Wan, Yuelyu Ji

arxiv:2605.25988 v1 · 2026-05-25 · cs.CL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7EXUB7T7CJRIDS4ZPUCOXFXPI}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-26T02:05:22.057988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87c97a07f3f893140e5ccbe8275cb77a014aeaae374e15fe40a41d1463a05848

Aliases

arxiv: 2605.25988 · arxiv_version: 2605.25988v1 · doi: 10.48550/arxiv.2605.25988 · pith_short_12: Q7EXUB7T7CJR · pith_short_16: Q7EXUB7T7CJRIDS4 · pith_short_8: Q7EXUB7T

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/Q7EXUB7T7CJRIDS4ZPUCOXFXPI \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 87c97a07f3f893140e5ccbe8275cb77a014aeaae374e15fe40a41d1463a05848

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1be7fe6289cb8117591b5d99f4ba4da0707399c1fa4c9a26d69616a1af7c2797",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-25T16:06:06Z",
    "title_canon_sha256": "c82e5a4e368af4068b9368e99b17572d07484d5131a9f414dcd3a436100adfa8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.25988",
    "kind": "arxiv",
    "version": 1
  }
}