Pith Number

pith:5NM4GHDI

pith:2026:5NM4GHDISHSPGI6JIE7BV6ZF6D

not attested not anchored not stored refs pending

SkillZip: Contract-Preserving Graph Compression for Scalable Agent Skill Libraries

Liming Zhu, Qing Liu, Wenjie Zhang, Xiaoyang Wang, Xingyu Tan, Xin Yuan, Xiwei Xu

arxiv:2608.05604 v1 · 2026-08-06 · cs.CL · 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{5NM4GHDISHSPGI6JIE7BV6ZF6D}

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	2026-08-07T00:50:17.235180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb59c31c6891e4f323c9413e1afb25f0de61d815886d9bf6d2a75a6630316432

Aliases

arxiv: 2608.05604 · arxiv_version: 2608.05604v1 · doi: 10.48550/arxiv.2608.05604 · pith_short_12: 5NM4GHDISHSP · pith_short_16: 5NM4GHDISHSPGI6J · pith_short_8: 5NM4GHDI

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/5NM4GHDISHSPGI6JIE7BV6ZF6D \
  | 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: eb59c31c6891e4f323c9413e1afb25f0de61d815886d9bf6d2a75a6630316432

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35383727c2e0e870474d3b99ed4c843801dc19c04a5af7d3f86c100c25d023eb",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-08-06T05:03:31Z",
    "title_canon_sha256": "325452b9ed0ad0804b4fdd1fcbdcef666e9eda73ae13883b18fd4f258286e727"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.05604",
    "kind": "arxiv",
    "version": 1
  }
}