Pith Number

pith:C3NWHLP7

pith:2025:C3NWHLP7UCUYPUDA6KXGHSXBIQ

not attested not anchored not stored refs pending

Prefix Grouper: Efficient GRPO Training through Shared-Prefix Forward

Jing Liu, Junxian Cai, Longteng Guo, Qingbin Liu, Tongtian Yue, Xi Chen, Yepeng Tang, Zikang Liu

arxiv:2506.05433 v1 · 2025-06-05 · cs.LG · cs.AI

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C3NWHLP7UCUYPUDA6KXGHSXBIQ}

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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

6 papers in Pith

Faster Synchronous On-Policy RL via Straggler-Aware Group Sizing

Schedule-Level Shared-Prefix Reuse for LLM RL Training

DualKV: Shared-Prompt Flash Attention for Efficient RL Training with Large Rollouts and Long Contexts

LaV-CoT: Language-Aware Visual CoT with Multi-Aspect Reward Optimization for Real-World Multilingual VQA

Receipt and verification

First computed	2026-07-05T11:17:02.597500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16db63adffa0a987d060f2ae63cae1440d02ebe7bc6b2e52419340d0657eb544

Aliases

arxiv: 2506.05433 · arxiv_version: 2506.05433v1 · doi: 10.48550/arxiv.2506.05433 · pith_short_12: C3NWHLP7UCUY · pith_short_16: C3NWHLP7UCUYPUDA · pith_short_8: C3NWHLP7

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/C3NWHLP7UCUYPUDA6KXGHSXBIQ \
  | 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: 16db63adffa0a987d060f2ae63cae1440d02ebe7bc6b2e52419340d0657eb544

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1043a179a98c9a4de85d25ca30b7fa04540e7f98ff61de568bf5609318aa03d",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-06-05T09:13:37Z",
    "title_canon_sha256": "ff995b34a4a2294f7d2e2808adb86553a23ca17d150dfe000f3bdc2c87371681"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.05433",
    "kind": "arxiv",
    "version": 1
  }
}