Pith Number

pith:2SKSF422

pith:2026:2SKSF422HJOT2BGNFJCMDNAQSJ

not attested not anchored not stored refs pending

BranPO: Scalable Contrastive Branch Sampling for Long-Horizon Agentic Reinforcement Learning

Chen Chen, Chengwei Qin, Ruochen Zhao, Sudong Wang, Weiquan Huang, Yao Shu, Yubao Zhao

arxiv:2602.03719 v2 · 2026-02-03 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2SKSF422HJOT2BGNFJCMDNAQSJ}

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.

Receipt and verification

First computed	2026-06-02T03:04:37.989921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d49522f35a3a5d3d04cd2a44c1b410926eb09a4894dc5b4778a16cff5ba8ea30

Aliases

arxiv: 2602.03719 · arxiv_version: 2602.03719v2 · doi: 10.48550/arxiv.2602.03719 · pith_short_12: 2SKSF422HJOT · pith_short_16: 2SKSF422HJOT2BGN · pith_short_8: 2SKSF422

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/2SKSF422HJOT2BGNFJCMDNAQSJ \
  | 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: d49522f35a3a5d3d04cd2a44c1b410926eb09a4894dc5b4778a16cff5ba8ea30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14e689e5c3a70e9cdf376328d664f1da3b41392e313af26303aee35b03051f08",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-02-03T16:43:09Z",
    "title_canon_sha256": "2425ca290ad695f0d8b0bcb31d671122559005954766be411a3a70e030420a66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.03719",
    "kind": "arxiv",
    "version": 2
  }
}