Pith Number

pith:RVWQJCQY

pith:2026:RVWQJCQYLIODWCD47I5JL5X3PD

not attested not anchored not stored refs pending

Compress the Easy, Explore the Hard: Difficulty-Aware Entropy Regularization for Efficient LLM Reasoning

Jun Fang, Naiqiang Tan, Qin-Wen Luo, Rui Liu, Sheng-Jun Huang, Sheng Ren, Xiang Chen

arxiv:2602.22642 v2 · 2026-02-26 · 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{RVWQJCQYLIODWCD47I5JL5X3PD}

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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

1 paper in Pith

Implicit Compression Regularization: Concise Reasoning via Internal Shorter Distributions in RL Post-Training

Receipt and verification

First computed	2026-06-23T00:11:49.020270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d6d048a185a1c3b087cfa3a95f6fb78c658658c4e98a5e7f5f2bb8ed238adf6

Aliases

arxiv: 2602.22642 · arxiv_version: 2602.22642v2 · doi: 10.48550/arxiv.2602.22642 · pith_short_12: RVWQJCQYLIOD · pith_short_16: RVWQJCQYLIODWCD4 · pith_short_8: RVWQJCQY

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/RVWQJCQYLIODWCD47I5JL5X3PD \
  | 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: 8d6d048a185a1c3b087cfa3a95f6fb78c658658c4e98a5e7f5f2bb8ed238adf6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b90e231ebca01208aeb10119401c6225014384708e4587cf27e81536732faeb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-02-26T05:47:30Z",
    "title_canon_sha256": "b8be7c6db345b1cb0903f68c5dda983fc4159145bd5baa12ee2e7272f3e87a68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.22642",
    "kind": "arxiv",
    "version": 2
  }
}