Pith Number

pith:QT6I6LTY

pith:2025:QT6I6LTYWUCQVENB2LMCH7EWXK

not attested not anchored not stored refs pending

Chameleon: A Flexible Data-mixing Framework for Language Model Pretraining and Finetuning

Francesco Tonin, Volkan Cevher, Wanyun Xie

arxiv:2505.24844 v1 · 2025-05-30 · cs.LG · 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{QT6I6LTYWUCQVENB2LMCH7EWXK}

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.

Cited by

2 papers in Pith

HERMES: A Multi-Granularity Labeling Substrate for Pre-training Data Mixtures

Data Mixing for Large Language Models Pretraining: A Survey and Outlook

Receipt and verification

First computed	2026-07-05T11:12:57.736770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84fc8f2e78b5050a91a1d2d823fc96baa07d7d7d8ea2dd9c5c7f4685893e41e5

Aliases

arxiv: 2505.24844 · arxiv_version: 2505.24844v1 · doi: 10.48550/arxiv.2505.24844 · pith_short_12: QT6I6LTYWUCQ · pith_short_16: QT6I6LTYWUCQVENB · pith_short_8: QT6I6LTY

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/QT6I6LTYWUCQVENB2LMCH7EWXK \
  | 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: 84fc8f2e78b5050a91a1d2d823fc96baa07d7d7d8ea2dd9c5c7f4685893e41e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cf8aee37df4cf96cfb8a6c23a41a1dc012d1c4b5f3b5a8d657ea96ece4f5281",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-30T17:43:10Z",
    "title_canon_sha256": "42e35a66000bcbdf69ba412d684c99a78b54b13d029fe657b28d48134c4246d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.24844",
    "kind": "arxiv",
    "version": 1
  }
}