Pith Number

pith:4VVT6V4I

pith:2026:4VVT6V4I73KTDJOGVSHVAWEQIQ

not attested not anchored not stored refs pending

Unified Data Selection for LLM Reasoning

Chengpeng Li, Dayiheng Liu, Fengbin Zhu, Fuli Feng, Keqin Bao, Wenjie Wang, Xiaoyuan Li, Yiyao Yu, Yubo Ma

arxiv:2605.22389 v1 · 2026-05-21 · 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{4VVT6V4I73KTDJOGVSHVAWEQIQ}

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	2026-05-22T01:04:41.166088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e56b3f5788fed531a5c6ac8f50589044106850210315ff0931e4c2320d91bcc1

Aliases

arxiv: 2605.22389 · arxiv_version: 2605.22389v1 · doi: 10.48550/arxiv.2605.22389 · pith_short_12: 4VVT6V4I73KT · pith_short_16: 4VVT6V4I73KTDJOG · pith_short_8: 4VVT6V4I

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/4VVT6V4I73KTDJOGVSHVAWEQIQ \
  | 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: e56b3f5788fed531a5c6ac8f50589044106850210315ff0931e4c2320d91bcc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "730816e7639183ff06fb2b29b392365d8b9d90cd7030f81801e9101e7d487631",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-21T12:21:41Z",
    "title_canon_sha256": "2022df57695539a08401510975b6e2e2afff74a226bd01cdb18da5a0bfbe9928"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22389",
    "kind": "arxiv",
    "version": 1
  }
}