Pith Number

pith:C4JEF5LK

pith:2026:C4JEF5LKFDAKQZ4BC3QKRUWXBO

not attested not anchored not stored refs pending

Tandem Reinforcement Learning with Verifiable Rewards

Ashton Anderson, Difan Jiao, Raghav Singhal, Robert West

arxiv:2606.28166 v1 · 2026-06-26 · 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{C4JEF5LKFDAKQZ4BC3QKRUWXBO}

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	2026-06-29T01:15:07.960781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

171242f56a28c0a8678116e0a8d2d70ba2c193c6324d41b1e424b2218fd71c2e

Aliases

arxiv: 2606.28166 · arxiv_version: 2606.28166v1 · doi: 10.48550/arxiv.2606.28166 · pith_short_12: C4JEF5LKFDAK · pith_short_16: C4JEF5LKFDAKQZ4B · pith_short_8: C4JEF5LK

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/C4JEF5LKFDAKQZ4BC3QKRUWXBO \
  | 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: 171242f56a28c0a8678116e0a8d2d70ba2c193c6324d41b1e424b2218fd71c2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c3125c50cdf4ddadbb80bcde49db9af80f16a1da711da0a3bb3b282b7c6e9b3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-26T15:00:35Z",
    "title_canon_sha256": "bb029d7c64cd8103778c36e68184be1ad6d6dca4452fd6b84c820895359c86b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.28166",
    "kind": "arxiv",
    "version": 1
  }
}