Pith Number

pith:FHK2SA2W

pith:2025:FHK2SA2WL3NSCBN3HO2QLTJWUB

not attested not anchored not stored refs pending

StepSearch: Igniting LLMs Search Ability via Step-Wise Proximal Policy Optimization

Cijun Ouyang, Jialu Cai, Kang An, Xuhui Zheng, Yichao Wu, Yuhang Wang, Ziliang Wang

arxiv:2505.15107 v2 · 2025-05-21 · cs.CL · cs.AI · cs.IR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FHK2SA2WL3NSCBN3HO2QLTJWUB}

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

19 papers in Pith

Information Gain-based Rollout Policy Optimization: An Adaptive Tree-Structured Rollout Approach for Multi-Turn LLM Agents

Group-Graph Policy Optimization for Long-Horizon Agentic Reinforcement Learning

ReSum: Synergizing LLM Reasoning and Summarization with Reinforcement Learning

PBSD: Privileged Bayesian Self-Distillation for Long-Horizon Credit Assignment

Co-Evolving Skill Generation and Policy Optimization

Receipt and verification

First computed	2026-07-05T11:09:14.529272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29d5a903565edb2105bb3bb505cd36a06ff5d2690d62f52bcb5b9f5cdcb17098

Aliases

arxiv: 2505.15107 · arxiv_version: 2505.15107v2 · doi: 10.48550/arxiv.2505.15107 · pith_short_12: FHK2SA2WL3NS · pith_short_16: FHK2SA2WL3NSCBN3 · pith_short_8: FHK2SA2W

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/FHK2SA2WL3NSCBN3HO2QLTJWUB \
  | 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: 29d5a903565edb2105bb3bb505cd36a06ff5d2690d62f52bcb5b9f5cdcb17098

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1106e155db072c9f1615361e92c37976eefc2ce8dc71326ea051d390cf320109",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-05-21T05:01:31Z",
    "title_canon_sha256": "d977de914fec6043096b22434bdc2c9db0be522f32507455d9040f7719f0fa1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.15107",
    "kind": "arxiv",
    "version": 2
  }
}