Pith Number

pith:OB5XJDTU

pith:2018:OB5XJDTUM2XDSQJJNWQRF6WS2X

not attested not anchored not stored refs pending

Spectral isoperimetric inequality for the $\delta'$-interaction on a contour

Vladimir Lotoreichik

arxiv:1810.05457 v1 · 2018-10-12 · math.SP · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OB5XJDTUM2XDSQJJNWQRF6WS2X}

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	2026-05-18T00:03:30.480881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

707b748e7466ae3941296da112fad2d5da60063040a3ef72aaaa799ea2bca1fa

Aliases

arxiv: 1810.05457 · arxiv_version: 1810.05457v1 · doi: 10.48550/arxiv.1810.05457 · pith_short_12: OB5XJDTUM2XD · pith_short_16: OB5XJDTUM2XDSQJJ · pith_short_8: OB5XJDTU

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/OB5XJDTUM2XDSQJJNWQRF6WS2X \
  | 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: 707b748e7466ae3941296da112fad2d5da60063040a3ef72aaaa799ea2bca1fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09e310aaa1c52cee1faa0b09b96c357380f16f64769c9ddefa818abc210676a5",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2018-10-12T11:35:29Z",
    "title_canon_sha256": "fbfa1dc324b4f1d7ec188cd98bf58676bcaec5d0c9cdfd2fa67f40b2fc4acaca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05457",
    "kind": "arxiv",
    "version": 1
  }
}