Pith Number

pith:SZ5BGYO7

pith:2026:SZ5BGYO7FRFCEOEV6NMR4BZNEG

not attested not anchored not stored refs pending

Polar: Agentic RL on Any Harness at Scale

Binfeng Xu, Hao Zhang, Jan Kautz, Jian Hu, Michael Demoret, Mingjie Liu, Shaokun Zhang, Shizhe Diao, Songyang Han, Yi Dong, Yunheng Zou, Zhenghui Jin

arxiv:2605.24220 v1 · 2026-05-22 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SZ5BGYO7FRFCEOEV6NMR4BZNEG}

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	2026-05-26T01:02:53.215535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

967a1361df2c4a223895f3591e072d21adb43f20901ef41047427853f988e98e

Aliases

arxiv: 2605.24220 · arxiv_version: 2605.24220v1 · doi: 10.48550/arxiv.2605.24220 · pith_short_12: SZ5BGYO7FRFC · pith_short_16: SZ5BGYO7FRFCEOEV · pith_short_8: SZ5BGYO7

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/SZ5BGYO7FRFCEOEV6NMR4BZNEG \
  | 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: 967a1361df2c4a223895f3591e072d21adb43f20901ef41047427853f988e98e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2a343bdd8017fb93c88122cac8d8f1fc5a046b3223b50f52a5f6c06923e558c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2026-05-22T21:06:12Z",
    "title_canon_sha256": "5bd37c575e610e09fd1e1623f749624d0cd5f02e102e55e537d6eba1c44d6487"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.24220",
    "kind": "arxiv",
    "version": 1
  }
}