Pith Number

pith:LLWFXZFS

pith:2025:LLWFXZFSAOFS2DQOOOMSUFGZRY

not attested not anchored not stored refs pending

Group-Level Data Selection for Efficient Pretraining

Arnold Overwijk, Chenyan Xiong, Fei Peng, Jie Lei, Wen-tau Yih, Zichun Yu

arxiv:2502.14709 v2 · 2025-02-20 · 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{LLWFXZFSAOFS2DQOOOMSUFGZRY}

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	2026-07-05T11:24:14.669956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5aec5be4b2038b2d0e0e73992a14d98e0bcd2dfda3ec85cea347ca0a00b46281

Aliases

arxiv: 2502.14709 · arxiv_version: 2502.14709v2 · doi: 10.48550/arxiv.2502.14709 · pith_short_12: LLWFXZFSAOFS · pith_short_16: LLWFXZFSAOFS2DQO · pith_short_8: LLWFXZFS

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/LLWFXZFSAOFS2DQOOOMSUFGZRY \
  | 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: 5aec5be4b2038b2d0e0e73992a14d98e0bcd2dfda3ec85cea347ca0a00b46281

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c41084e733bb3d903035942cbb9edee43d9e530871cce6128c603ca60427399",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-02-20T16:34:46Z",
    "title_canon_sha256": "2ffdfd0fdeb629ede0c3ff4b21d013278c18221e41d0d1c8e21b5aab5a49db35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.14709",
    "kind": "arxiv",
    "version": 2
  }
}