Pith Number

pith:ITC4BYKA

pith:2026:ITC4BYKARNPEUSSM6DA2CMSOA6

not attested not anchored not stored refs pending

Cut Your Losses! Learning to Prune Paths Early for Efficient Parallel Reasoning

Benyou Wang, Jiaxi Bi, Tongxu Luo, Wenyu Du, Zhengyang Tang

STOP is a new learnable internal path-pruning technique that improves efficiency and accuracy of parallel reasoning in LRMs under fixed compute budgets.

arxiv:2604.16029 v2 · 2026-04-17 · cs.CL · 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{ITC4BYKARNPEUSSM6DA2CMSOA6}

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.

Claims

C1strongest claim

STOP achieves superior effectiveness and efficiency compared to existing baselines, for instance boosting GPT-OSS-20B accuracy on AIME25 from 84% to nearly 90% under fixed compute budgets.

C2weakest assumption

That the proposed taxonomy is exhaustive and that learnable internal pruning signals can be trained reliably without introducing new failure modes or overfitting to the evaluation tasks.

C3one line summary

STOP is a new learnable internal path-pruning technique that improves efficiency and accuracy of parallel reasoning in LRMs under fixed compute budgets.

Receipt and verification

First computed	2026-06-03T01:05:50.433121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44c5c0e1408b5e4a4a4cf0c1a1324e07813939d3b2d8b42eb12b5c7f7d89babb

Aliases

arxiv: 2604.16029 · arxiv_version: 2604.16029v2 · doi: 10.48550/arxiv.2604.16029 · pith_short_12: ITC4BYKARNPE · pith_short_16: ITC4BYKARNPEUSSM · pith_short_8: ITC4BYKA

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/ITC4BYKARNPEUSSM6DA2CMSOA6 \
  | 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: 44c5c0e1408b5e4a4a4cf0c1a1324e07813939d3b2d8b42eb12b5c7f7d89babb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5da614cd27d4f5f7f73f84ff48671c3e601ec07d4a018f5797184b67ae1b4e55",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-04-17T13:00:22Z",
    "title_canon_sha256": "327072fef90c93839b2905a218ae7bb48aa17a2ea093f9ba8b5324618c0d9c9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.16029",
    "kind": "arxiv",
    "version": 2
  }
}