Pith Number

pith:ZTFJUVDD

pith:2013:ZTFJUVDDSZ6VVCFQNZCIVPTPBQ

not attested not anchored not stored refs pending

The Sum-over-Forests density index: identifying dense regions in a graph

Amin Mantrach, Fran\c{c}ois Fouss, Marco Saerens, Masashi Shimbo, Mathieu Senelle, Silvia Garcia-Diez

arxiv:1301.0725 v1 · 2013-01-04 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZTFJUVDDSZ6VVCFQNZCIVPTPBQ}

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	2026-05-18T03:37:17.829995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccca9a5463967d5a88b06e448abe6f0c23992e1f356ea0e09d784af7a9324e55

Aliases

arxiv: 1301.0725 · arxiv_version: 1301.0725v1 · doi: 10.48550/arxiv.1301.0725 · pith_short_12: ZTFJUVDDSZ6V · pith_short_16: ZTFJUVDDSZ6VVCFQ · pith_short_8: ZTFJUVDD

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/ZTFJUVDDSZ6VVCFQNZCIVPTPBQ \
  | 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: ccca9a5463967d5a88b06e448abe6f0c23992e1f356ea0e09d784af7a9324e55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6f3fb656419c79034a6f120c41a9c5c390b13e5dc29a30e930182b033ddb559",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-01-04T13:56:25Z",
    "title_canon_sha256": "62583861712d92f0281adf54bbd701913d83f9da0504ad9320bbb8e9d6506324"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0725",
    "kind": "arxiv",
    "version": 1
  }
}