Pith Number

pith:U4FQP4QW

pith:2026:U4FQP4QWNBZ233IUD3EOTWRKWV

not attested not anchored not stored refs pending

When Do Intrinsic Rewards Work for Code Reasoning? A Comprehensive Study

Dawn Song, Wenbo Guo, Xiangyu Zhang, Xiaolong Jin, Xuandong Zhao

arxiv:2606.20881 v1 · 2026-06-18 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4FQP4QWNBZ233IUD3EOTWRKWV}

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	2026-06-23T00:12:01.623424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a70b07f2166873aded141ec8e9da2ab5769e190e2ea93d1a081fc85d543b7c93

Aliases

arxiv: 2606.20881 · arxiv_version: 2606.20881v1 · doi: 10.48550/arxiv.2606.20881 · pith_short_12: U4FQP4QWNBZ2 · pith_short_16: U4FQP4QWNBZ233IU · pith_short_8: U4FQP4QW

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/U4FQP4QWNBZ233IUD3EOTWRKWV \
  | 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: a70b07f2166873aded141ec8e9da2ab5769e190e2ea93d1a081fc85d543b7c93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea4941bbfb396b081f079d18fd0e94558056c4da40267e73caa22decf2518ff8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-18T19:15:50Z",
    "title_canon_sha256": "f82f61d02a7f64076c557c4aaf4981e0fc17a9916caa6d126b17168c58253540"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.20881",
    "kind": "arxiv",
    "version": 1
  }
}