Pith Number

pith:J7M237SO

pith:2026:J7M237SOWJ7RKBITGYNFZ6SDVT

not attested not anchored not stored refs pending

Spiking the training data to correct for test set contamination

Ameya Godbole, Jerry Li, Johnny Tian-Zheng Wei, Robin Jia

arxiv:2605.24818 v1 · 2026-05-24 · stat.ME · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J7M237SOWJ7RKBITGYNFZ6SDVT}

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	2026-05-26T01:03:59.856096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fd9adfe4eb27f150513361a5cfa43aced368daa433f25b87f4d64571c6e8f5a

Aliases

arxiv: 2605.24818 · arxiv_version: 2605.24818v1 · doi: 10.48550/arxiv.2605.24818 · pith_short_12: J7M237SOWJ7R · pith_short_16: J7M237SOWJ7RKBIT · pith_short_8: J7M237SO

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/J7M237SOWJ7RKBITGYNFZ6SDVT \
  | 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: 4fd9adfe4eb27f150513361a5cfa43aced368daa433f25b87f4d64571c6e8f5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9b05e6fe60c084931fa242ad2a36fcd957e477570717c16d72dec1cd50cd317",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-05-24T02:06:59Z",
    "title_canon_sha256": "22a4551cd3403dbc5a0c8b4f3cf365eaa02684d85ada6940f20190ce5a4329e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.24818",
    "kind": "arxiv",
    "version": 1
  }
}