Pith Number

pith:25W76VJO

pith:2012:25W76VJOEFX2S6JYUSLT4UBHOT

not attested not anchored not stored refs pending

L-RCM: a method to detect connected components in undirected graphs by using the Laplacian matrix and the RCM algorithm

Alberto Palomares, Carlos Carrascosa, Francisco Pedroche, Miguel Rebollo

arxiv:1206.5726 v1 · 2012-06-25 · cs.DM · cs.SI · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{25W76VJOEFX2S6JYUSLT4UBHOT}

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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	2026-05-18T02:21:08.775669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d76dff552e216fa97938a4973e502774e475989fe8ef13a06181f548b84b0cc9

Aliases

arxiv: 1206.5726 · arxiv_version: 1206.5726v1 · doi: 10.48550/arxiv.1206.5726 · pith_short_12: 25W76VJOEFX2 · pith_short_16: 25W76VJOEFX2S6JY · pith_short_8: 25W76VJO

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/25W76VJOEFX2S6JYUSLT4UBHOT \
  | 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: d76dff552e216fa97938a4973e502774e475989fe8ef13a06181f548b84b0cc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2de386269baa22e630975911e4490dc916526460f36c9e37ec26710dfd28aac3",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2012-06-25T16:13:59Z",
    "title_canon_sha256": "4647fb17a2ac93c83dd7ccfb943a6d549fdbf25f82aa2ca350d1edb1e6b8b185"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5726",
    "kind": "arxiv",
    "version": 1
  }
}