Pith Number

pith:RY7NZG6C

pith:2025:RY7NZG6CXHDWHXDQ2UGXJTA36J

not attested not anchored not stored refs pending

Optimizing Chain-of-Thought Reasoners via Gradient Variance Minimization in Rejection Sampling and RL

Hanning Zhang, HanZe Dong, Jiarui Yao, Nan Jiang, Tong Zhang, Wei Xiong, Yifan Hao

arxiv:2505.02391 v1 · 2025-05-05 · cs.LG · cs.AI · cs.CL

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\usepackage{pith}
\pithnumber{RY7NZG6CXHDWHXDQ2UGXJTA36J}

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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

4 papers in Pith

Rollout-Level Advantage-Prioritized Experience Replay for GRPO

VI-CuRL: Stabilizing Verifier-Independent RL Reasoning via Confidence-Guided Variance Reduction

Your Model Diversity, Not Method, Determines Reasoning Strategy

Rethinking Importance Sampling in LLM Policy Optimization: A Cumulative Token Perspective

Receipt and verification

First computed	2026-07-05T10:58:36.395841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e3edc9bc2b9c763dc70d50d74cc1bf25c64f5fb86350e2242feaab07501d213

Aliases

arxiv: 2505.02391 · arxiv_version: 2505.02391v1 · doi: 10.48550/arxiv.2505.02391 · pith_short_12: RY7NZG6CXHDW · pith_short_16: RY7NZG6CXHDWHXDQ · pith_short_8: RY7NZG6C

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/RY7NZG6CXHDWHXDQ2UGXJTA36J \
  | 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: 8e3edc9bc2b9c763dc70d50d74cc1bf25c64f5fb86350e2242feaab07501d213

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2b4ce6e27b4325124f7672d04f62a03c476f7e3bdae7f6c0910812f9bae403a",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-05T06:26:00Z",
    "title_canon_sha256": "355fe961c095e4c4f2eaed3694a74569799792cbb437218659000fd133f9c9b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.02391",
    "kind": "arxiv",
    "version": 1
  }
}