Pith Number

pith:IMNFHQOW

pith:2025:IMNFHQOWSZBK6KROQQZDIFAO3Q

not attested not anchored not stored refs pending

On the spectral theory of sign-changing Laplace operators

Yves Colin De Verdi\`ere (IF)

arxiv:2502.03838 v1 · 2025-02-06 · math.AP · math-ph · math.MP · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IMNFHQOWSZBK6KROQQZDIFAO3Q}

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

Surface plasmons in metamaterial cavities: Scattering by obstacles with negative wave speed

Receipt and verification

First computed	2026-07-05T10:10:15.668287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

431a53c1d69642af2a2e843234140edc0fd8e12c4134e16f1cc857266ef80c47

Aliases

arxiv: 2502.03838 · arxiv_version: 2502.03838v1 · doi: 10.48550/arxiv.2502.03838 · pith_short_12: IMNFHQOWSZBK · pith_short_16: IMNFHQOWSZBK6KRO · pith_short_8: IMNFHQOW

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/IMNFHQOWSZBK6KROQQZDIFAO3Q \
  | 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: 431a53c1d69642af2a2e843234140edc0fd8e12c4134e16f1cc857266ef80c47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6f6261ef9a4e7ac6dcb51254c2be938d59fa94eaa305bc5eb0863e1643c864a",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2025-02-06T07:47:20Z",
    "title_canon_sha256": "41e584ee8cc0ad0f3560d54c9e32b993fc8e32377a74962f88623aea2f8e95da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.03838",
    "kind": "arxiv",
    "version": 1
  }
}