Pith Number

pith:O7HZKB2R

pith:2026:O7HZKB2R3B4SVOE3JWQDC5JEZ4

not attested not anchored not stored refs pending

Skills Know Their Neighbors: Cluster-Contrastive Capability Pages for Skill Retrieval

Qiang Ji, Ruizhi Qiao, Wei Wen, Zifei Wang

arxiv:2608.04482 v1 · 2026-08-05 · 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{O7HZKB2R3B4SVOE3JWQDC5JEZ4}

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	2026-08-06T01:35:41.355760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77cf950751d8792ab89b4da0317524cf09d5a6af08d80d8c9af42b8ba73673d2

Aliases

arxiv: 2608.04482 · arxiv_version: 2608.04482v1 · doi: 10.48550/arxiv.2608.04482 · pith_short_12: O7HZKB2R3B4S · pith_short_16: O7HZKB2R3B4SVOE3 · pith_short_8: O7HZKB2R

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/O7HZKB2R3B4SVOE3JWQDC5JEZ4 \
  | 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: 77cf950751d8792ab89b4da0317524cf09d5a6af08d80d8c9af42b8ba73673d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a3afc40b82da76faa15c678a644d9a247e8a52b651dc4fbd723c19769290729",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-08-05T06:09:47Z",
    "title_canon_sha256": "6e9ae93fd3d3dd3c03cb32176fb428524b6960c22031a6082c59bee1e0904b14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.04482",
    "kind": "arxiv",
    "version": 1
  }
}