Pith Number

pith:LSHMZTBQ

pith:2013:LSHMZTBQLPOXFVX5OIBIGPHHHI

not attested not anchored not stored refs pending

Computing the smallest eigenpairs of the graph Laplacian

Enrico Bozzo, Luca Bergamaschi, Massimo Franceschet

arxiv:1311.1695 v1 · 2013-11-07 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LSHMZTBQLPOXFVX5OIBIGPHHHI}

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	2026-05-18T03:07:43.582858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c8ecccc305bdd72d6fd7202833ce73a2a30a8594a9199704644227e089bf472

Aliases

arxiv: 1311.1695 · arxiv_version: 1311.1695v1 · doi: 10.48550/arxiv.1311.1695 · pith_short_12: LSHMZTBQLPOX · pith_short_16: LSHMZTBQLPOXFVX5 · pith_short_8: LSHMZTBQ

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/LSHMZTBQLPOXFVX5OIBIGPHHHI \
  | 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: 5c8ecccc305bdd72d6fd7202833ce73a2a30a8594a9199704644227e089bf472

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "507f713054e90ab8e3426221a9b2f3a14136a5f5b8c883cae5325d987b9204cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-11-07T14:37:27Z",
    "title_canon_sha256": "fd1608327ccd7543124676653f3b653357c92de788151d1d09ad6017e9a2f440"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1695",
    "kind": "arxiv",
    "version": 1
  }
}