Pith Number

pith:7GLOO52O

pith:2014:7GLOO52OXXXZR2IZPWXYMEE3JR

not attested not anchored not stored refs pending

Neumann spectral problem in a domain with very corrugated boundary

Andrii Khrabustovskyi, Giuseppe Cardone

arxiv:1409.4584 v2 · 2014-09-16 · math.SP · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7GLOO52OXXXZR2IZPWXYMEE3JR}

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	2026-05-18T02:30:00.723448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f996e7774ebdef98e9197daf86109b4c786f1d0aa2a3d8e9d77f27644596439f

Aliases

arxiv: 1409.4584 · arxiv_version: 1409.4584v2 · doi: 10.48550/arxiv.1409.4584 · pith_short_12: 7GLOO52OXXXZ · pith_short_16: 7GLOO52OXXXZR2IZ · pith_short_8: 7GLOO52O

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/7GLOO52OXXXZR2IZPWXYMEE3JR \
  | 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: f996e7774ebdef98e9197daf86109b4c786f1d0aa2a3d8e9d77f27644596439f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc104b9eed789e580dbfb483f2b06b0c08bb3976da95a34d748afd5afad396cb",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2014-09-16T11:19:04Z",
    "title_canon_sha256": "86392f68eada680831d033b8eb246f23255c84bb42d4930ffc04f08264525f3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4584",
    "kind": "arxiv",
    "version": 2
  }
}