Pith Number

pith:4HLLBK5Z

pith:2026:4HLLBK5Z4FRDX4HK6KU6TXWXTO

not attested not anchored not stored refs pending

SD-Search: On-Policy Hindsight Self-Distillation for Search-Augmented Reasoning

Ben Chen, Chenyi Lei, Huangyu Dai, Lingtao Mao, Wenwu Ou, Xuxin Zhang, Yufei Ma, Zhipeng Qian, Zihan Liang

arxiv:2605.18299 v1 · 2026-05-18 · cs.AI · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4HLLBK5Z4FRDX4HK6KU6TXWXTO}

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	2026-05-20T00:05:54.048744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1d6b0abb9e1623bf0eaf2a9e9ded79bb6fc6bcaf694d88e7742a5044209f9eb

Aliases

arxiv: 2605.18299 · arxiv_version: 2605.18299v1 · doi: 10.48550/arxiv.2605.18299 · pith_short_12: 4HLLBK5Z4FRD · pith_short_16: 4HLLBK5Z4FRDX4HK · pith_short_8: 4HLLBK5Z

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/4HLLBK5Z4FRDX4HK6KU6TXWXTO \
  | 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: e1d6b0abb9e1623bf0eaf2a9e9ded79bb6fc6bcaf694d88e7742a5044209f9eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cba01f48da7c5546f4b6d1a76845004433400995c028357d97368dbcd90e1249",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-18T12:18:47Z",
    "title_canon_sha256": "48e1eef21f2ac5a6b7c3b97ef423db18906b9a91218bfd5e5a9fbdab9d529357"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18299",
    "kind": "arxiv",
    "version": 1
  }
}