Pith Number

pith:BF74DONP

pith:2026:BF74DONPSGUCOZO7LS72TNI6K7

not attested not anchored not stored refs pending

S-SPPO: Semantic-Calibrated Self-Play Preference Optimization

Abolfazl Razi, Anderson Schneider, Brendan Hogan Rappazzo, Feng Luo, Huayu Li, Jingjing Wang, Mingkun Xu, Peijie Qiu, Prayag Tiwari, Wenhui Zhu, Xiwen Chen, Xuanzhao Dong, Yujian Xiong, Yuriy Nevmyvaka, ZhengXiao He, Zhipeng Wang

arxiv:2606.01561 v1 · 2026-06-01 · cs.AI · 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{BF74DONPSGUCOZO7LS72TNI6K7}

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	2026-06-02T02:04:36.640958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

097fc1b9af91a82765df5cbfa9b51e57def2a355acd802d11bce5c907e77264d

Aliases

arxiv: 2606.01561 · arxiv_version: 2606.01561v1 · doi: 10.48550/arxiv.2606.01561 · pith_short_12: BF74DONPSGUC · pith_short_16: BF74DONPSGUCOZO7 · pith_short_8: BF74DONP

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/BF74DONPSGUCOZO7LS72TNI6K7 \
  | 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: 097fc1b9af91a82765df5cbfa9b51e57def2a355acd802d11bce5c907e77264d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55c3bf34555b8875db5f726bc5145bffc2d568879754103ab651d21ba35d2ae5",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-01T02:06:58Z",
    "title_canon_sha256": "2a0f349417c4302181136015e7509da38419bd38636d3fab59ffbbfec4f82f71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.01561",
    "kind": "arxiv",
    "version": 1
  }
}