Pith Number

pith:TDWFNKD5

pith:2014:TDWFNKD5G76XXW3WRG7QOUO64J

not attested not anchored not stored refs pending

New examples of extremal domains for the first eigenvalue of the Laplace-Beltrami operator in a Riemannian manifold with boundary

Jimmy Lamboley, Pieralberto Sicbaldi

arxiv:1406.5167 v2 · 2014-06-19 · math.DG · 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{TDWFNKD5G76XXW3WRG7QOUO64J}

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	2026-05-18T02:49:19.750704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98ec56a87d37fd7bdb7689bf0751dee27a53a8ac53560fbc0e0398b1295333ba

Aliases

arxiv: 1406.5167 · arxiv_version: 1406.5167v2 · doi: 10.48550/arxiv.1406.5167 · pith_short_12: TDWFNKD5G76X · pith_short_16: TDWFNKD5G76XXW3W · pith_short_8: TDWFNKD5

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/TDWFNKD5G76XXW3WRG7QOUO64J \
  | 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: 98ec56a87d37fd7bdb7689bf0751dee27a53a8ac53560fbc0e0398b1295333ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c50a160dd1c1dfdcce83044d71b3951e286d287e2373a45486db47c8d4f41ece",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-06-19T19:45:18Z",
    "title_canon_sha256": "c89e4415ad2d97c83153fa73fee287a5311a397b9706d5d85179724d311e5461"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.5167",
    "kind": "arxiv",
    "version": 2
  }
}