Pith Number

pith:BSPYDCKD

pith:2026:BSPYDCKDID2N4R5RKU3AT7ZHBI

not attested not anchored not stored refs pending

What Should a Skill Remember? Quality-Cost Trade-offs in Cost-Aware Skill Rewriting for Language Model Agents

Bohan Lin, Hang Zhou, Hanting Chen, Qinghua Xing, Xinghao Chen, Yaping Jin, Yinda Chen, Zhenhe Wu, Zhiwei Xiong

arxiv:2606.09421 v1 · 2026-06-08 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BSPYDCKDID2N4R5RKU3AT7ZHBI}

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	2026-06-09T02:08:47.343480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c9f81894340f4de47b1553609ff270a1ed9cfd90486f8a1b136cf041ed87c09

Aliases

arxiv: 2606.09421 · arxiv_version: 2606.09421v1 · doi: 10.48550/arxiv.2606.09421 · pith_short_12: BSPYDCKDID2N · pith_short_16: BSPYDCKDID2N4R5R · pith_short_8: BSPYDCKD

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/BSPYDCKDID2N4R5RKU3AT7ZHBI \
  | 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: 0c9f81894340f4de47b1553609ff270a1ed9cfd90486f8a1b136cf041ed87c09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e64754c845048a3627cf143e82edb5f4429a75fc4b1b1a4910001481794f94c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-08T12:36:51Z",
    "title_canon_sha256": "98ecd572d9cdddc8d7efbceae44d84a56184d0e42ea9488e7888e42c7f2181a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.09421",
    "kind": "arxiv",
    "version": 1
  }
}