Pith Number

pith:P3UMIPJ2

pith:2026:P3UMIPJ2V6VUZPQKQYIFXUJWE2

not attested not anchored not stored refs pending

EnvFactory: Scaling Tool-Use Agents via Executable Environments Synthesis and Robust RL

Baiyu Huang, Boyu Zhu, Chao Chen, Fei Mi, Heyuan Deng, Lifeng Shang, Mengyi Deng, Minrui Xu, Xiao Zhu, Xingshan Zeng, Yinhong Liu, Zhicheng Yang, Zhijiang Guo, Zhiwei Li, Zilin Wang

arxiv:2605.18703 v1 · 2026-05-18 · 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{P3UMIPJ2V6VUZPQKQYIFXUJWE2}

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	2026-05-20T00:06:16.027531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ee8c43d3aafab4cbe0a86105bd136268ed1bd52560d3c096037a5b8dab45428

Aliases

arxiv: 2605.18703 · arxiv_version: 2605.18703v1 · doi: 10.48550/arxiv.2605.18703 · pith_short_12: P3UMIPJ2V6VU · pith_short_16: P3UMIPJ2V6VUZPQK · pith_short_8: P3UMIPJ2

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/P3UMIPJ2V6VUZPQKQYIFXUJWE2 \
  | 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: 7ee8c43d3aafab4cbe0a86105bd136268ed1bd52560d3c096037a5b8dab45428

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ed7ceac898edd64b3449996fac6b42e7bf5256a4e6bab58c31e54765761e5ba",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-18T17:37:40Z",
    "title_canon_sha256": "cc4a1b35d4c81b7863e41efeb942f15a823954787a504cabf3ba24e4e8b222ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18703",
    "kind": "arxiv",
    "version": 1
  }
}