Pith Number

pith:OTSC5VBI

pith:2008:OTSC5VBIORVWI47LOKJULFYZQO

not attested not anchored not stored refs pending

Spectrum of the Laplacian in a narrow curved strip with combined Dirichlet and Neumann boundary conditions

David Krejcirik

arxiv:0803.0937 v1 · 2008-03-06 · 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{OTSC5VBIORVWI47LOKJULFYZQO}

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	2026-05-18T04:28:21.946111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74e42ed428746b6473eb729345971983b227c63a37e9e9cb135673b56aa99aa6

Aliases

arxiv: 0803.0937 · arxiv_version: 0803.0937v1 · doi: 10.48550/arxiv.0803.0937 · pith_short_12: OTSC5VBIORVW · pith_short_16: OTSC5VBIORVWI47L · pith_short_8: OTSC5VBI

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/OTSC5VBIORVWI47LOKJULFYZQO \
  | 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: 74e42ed428746b6473eb729345971983b227c63a37e9e9cb135673b56aa99aa6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cceca24050d963b3829da4b717904f7e0c779c2880b27ecdddbecf6d57defce",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2008-03-06T18:40:18Z",
    "title_canon_sha256": "2fcbb49f9d55f24b09ad6191580c3d3873aa36460efc1b1f8705060d9e546ca7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.0937",
    "kind": "arxiv",
    "version": 1
  }
}