Pith Number

pith:3GWBH3M6

pith:2025:3GWBH3M6UWI2ST7QA5ACOGZM25

not attested not anchored not stored refs pending

Information-Guided Identification of Training Data Imprint in (Proprietary) Large Language Models

Abhilasha Ravichander, Chandra Bhagavatula, Jillian Fisher, Maria Antoniak, Niloofar Mireshghallah, Taylor Sorensen, Ximing Lu, Yejin Choi, Yuchen Lin

arxiv:2503.12072 v1 · 2025-03-15 · 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{3GWBH3M6UWI2ST7QA5ACOGZM25}

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	2026-07-05T10:32:04.724387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9ac13ed9ea591a94ff00740271b2cd7703f2619d92688128baa7dcc942cf8bf

Aliases

arxiv: 2503.12072 · arxiv_version: 2503.12072v1 · doi: 10.48550/arxiv.2503.12072 · pith_short_12: 3GWBH3M6UWI2 · pith_short_16: 3GWBH3M6UWI2ST7Q · pith_short_8: 3GWBH3M6

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/3GWBH3M6UWI2ST7QA5ACOGZM25 \
  | 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: d9ac13ed9ea591a94ff00740271b2cd7703f2619d92688128baa7dcc942cf8bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d35e41ef0867c1f3c45850910e3f02813161f254fea8f81036a8dec02d63039",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-03-15T10:19:15Z",
    "title_canon_sha256": "be89609c5e17d8ae1d9fa9873d4961608b4306ba7631a5f8f5acd7c234c7b202"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.12072",
    "kind": "arxiv",
    "version": 1
  }
}