Pith Number

pith:NKQIMBL4

pith:2026:NKQIMBL4OIYIAVNBGVPKHKPMRK

not attested not anchored not stored refs pending

Retrospective Harness Optimization: Improving LLM Agents via Self-Preference over Trajectory Rollouts

Chin-Yew Lin, Jingying Zeng, Shujie Liu, Wenbo Pan, Xianfeng Tang, Xiangyang Zhou, Xiaohua Jia, Yan Lu

arxiv:2606.05922 v1 · 2026-06-04 · cs.AI · cs.CL · 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{NKQIMBL4OIYIAVNBGVPKHKPMRK}

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	2026-06-05T01:15:27.698311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6aa086057c72308055a1355ea3a9ec8aa3f9bbccebf304e188fa24df4f45a9d4

Aliases

arxiv: 2606.05922 · arxiv_version: 2606.05922v1 · doi: 10.48550/arxiv.2606.05922 · pith_short_12: NKQIMBL4OIYI · pith_short_16: NKQIMBL4OIYIAVNB · pith_short_8: NKQIMBL4

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/NKQIMBL4OIYIAVNBGVPKHKPMRK \
  | 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: 6aa086057c72308055a1355ea3a9ec8aa3f9bbccebf304e188fa24df4f45a9d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b55f873abb3aa1564e91c5f9b0e5df3385a1a6bcf97c152831af6e48a97c3d5b",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-04T09:26:00Z",
    "title_canon_sha256": "67d4614003941f64ebc60159d8dfedcf9e5e73f1af758841d91fb8850cb42862"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.05922",
    "kind": "arxiv",
    "version": 1
  }
}