Pith Number

pith:5HPJ4VIK

pith:2009:5HPJ4VIKPFGL3VIM2WC4J5HZCX

not attested not anchored not stored refs pending

Improved community structure detection using a modified fine tuning strategy

Bogdan Danila, Kevin E. Bassler, Kresimir Josic, Yudong Sun

arxiv:0901.2151 v1 · 2009-01-15 · cs.CY · cond-mat.stat-mech · cs.DS · physics.comp-ph · physics.soc-ph · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5HPJ4VIKPFGL3VIM2WC4J5HZCX}

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	2026-05-18T02:14:57.374804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9de9e550a794cbdd50cd585c4f4f915c23f6e06f9e3f88b0b3d07365d7cc2de

Aliases

arxiv: 0901.2151 · arxiv_version: 0901.2151v1 · doi: 10.48550/arxiv.0901.2151 · pith_short_12: 5HPJ4VIKPFGL · pith_short_16: 5HPJ4VIKPFGL3VIM · pith_short_8: 5HPJ4VIK

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/5HPJ4VIKPFGL3VIM2WC4J5HZCX \
  | 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: e9de9e550a794cbdd50cd585c4f4f915c23f6e06f9e3f88b0b3d07365d7cc2de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8947f715c7db2c2d49174683a076ef60d7bbbdde436dfb9c2a70d630049a845a",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "cs.DS",
      "physics.comp-ph",
      "physics.soc-ph",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2009-01-15T00:40:26Z",
    "title_canon_sha256": "8fd68506a5697bd3ca220782b17dc513cba195c22c44b7a719c84eb496d24814"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2151",
    "kind": "arxiv",
    "version": 1
  }
}