Pith Number

pith:JTFO6DUE

pith:2025:JTFO6DUE476HU7XROFEBAZUUNG

not attested not anchored not stored refs pending

Nonlinear spectral graph theory

Dong Zhang, Francesco Tudisco, Piero Deidda

arxiv:2504.03566 v1 · 2025-04-04 · math.SP · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JTFO6DUE476HU7XROFEBAZUUNG}

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.

Cited by

1 paper in Pith

Cheeger Inequalities for the Persistent Laplacian

Receipt and verification

First computed	2026-07-05T10:44:33.812413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ccaef0e84e7fc7a7ef1714810669469bcff15d17b44e3b6526f28b46a790242

Aliases

arxiv: 2504.03566 · arxiv_version: 2504.03566v1 · doi: 10.48550/arxiv.2504.03566 · pith_short_12: JTFO6DUE476H · pith_short_16: JTFO6DUE476HU7XR · pith_short_8: JTFO6DUE

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/JTFO6DUE476HU7XROFEBAZUUNG \
  | 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: 4ccaef0e84e7fc7a7ef1714810669469bcff15d17b44e3b6526f28b46a790242

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0ccadf2e3da033470512a4d81773bd077068db47943dbabe4abe6fd24fc9554",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2025-04-04T16:13:27Z",
    "title_canon_sha256": "7348e4e44b9966c5cc16d17447c84500413b3f0ca47773df94212bc1e617f8dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.03566",
    "kind": "arxiv",
    "version": 1
  }
}