Pith Number

pith:3D4P6FBD

pith:2025:3D4P6FBD7SG4KS26GHX2KMVVOU

not attested not anchored not stored refs pending

The Spectral Barycentre of a Set of Graphs with Community Structure

Fran\c{c}ois G. Meyer

arxiv:2502.00038 v3 · 2025-01-26 · cs.SI · cs.LG · physics.data-an · 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{3D4P6FBD7SG4KS26GHX2KMVVOU}

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	2026-07-05T11:56:17.340969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8f8ff1423fc8dc54b5e31efa532b575331b542f04b168703451c503d741e5f8

Aliases

arxiv: 2502.00038 · arxiv_version: 2502.00038v3 · doi: 10.48550/arxiv.2502.00038 · pith_short_12: 3D4P6FBD7SG4 · pith_short_16: 3D4P6FBD7SG4KS26 · pith_short_8: 3D4P6FBD

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/3D4P6FBD7SG4KS26GHX2KMVVOU \
  | 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: d8f8ff1423fc8dc54b5e31efa532b575331b542f04b168703451c503d741e5f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b24b48e1821b3012423075da15fdc0cc4f8e488af771db04f4478b026fd4ac5b",
    "cross_cats_sorted": [
      "cs.LG",
      "physics.data-an",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2025-01-26T05:02:54Z",
    "title_canon_sha256": "76d222da45cefd69740952d5040ff5db7f1f1eb307abfd2460da02f11e48f98e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.00038",
    "kind": "arxiv",
    "version": 3
  }
}