Pith Number

pith:2BLPPV5Z

pith:2026:2BLPPV5ZTN3Y3S7AMDX3MIDVXN

not attested not anchored not stored refs pending

Branching Policy Optimization: Sandbox-Native Language Agent Reinforcement Learning

Bowei He, Xiaokun Zhang, Xue Liu, Yankai Chen

arxiv:2607.14171 v1 · 2026-07-15 · cs.LG · 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{2BLPPV5ZTN3Y3S7AMDX3MIDVXN}

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	2026-07-17T00:20:55.082581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d056f7d7b99b778dcbe060efb62075bb570a8da2fdd663dbf96ba17e16a6c06a

Aliases

arxiv: 2607.14171 · arxiv_version: 2607.14171v1 · doi: 10.48550/arxiv.2607.14171 · pith_short_12: 2BLPPV5ZTN3Y · pith_short_16: 2BLPPV5ZTN3Y3S7A · pith_short_8: 2BLPPV5Z

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/2BLPPV5ZTN3Y3S7AMDX3MIDVXN \
  | 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: d056f7d7b99b778dcbe060efb62075bb570a8da2fdd663dbf96ba17e16a6c06a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35b2a9f9de71a1263aff23d9ecd2a0873c1be01b9670df887409275e36e84025",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-15T09:37:36Z",
    "title_canon_sha256": "5e2f1bfd381708fcd099ed38c6d0fb69183c17fbf44563125eb408bfdbd7002f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.14171",
    "kind": "arxiv",
    "version": 1
  }
}