Pith Number

pith:GABQZA5D

pith:2016:GABQZA5DF6A3BGMKXAMMYY54ZJ

not attested not anchored not stored refs pending

Finite element method to solve the spectral problem for arbitrary self-adjoint extensions of the Laplace-Beltrami operator on manifolds with a boundary

A. L\'opez-Yela, J.M. P\'erez-Pardo

arxiv:1606.02329 v2 · 2016-06-06 · math.NA · 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{GABQZA5DF6A3BGMKXAMMYY54ZJ}

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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	2026-05-18T00:37:18.878700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30030c83a32f81b0998ab818cc63bcca65a2668bb189c7b6ac3deb027338bfe0

Aliases

arxiv: 1606.02329 · arxiv_version: 1606.02329v2 · doi: 10.48550/arxiv.1606.02329 · pith_short_12: GABQZA5DF6A3 · pith_short_16: GABQZA5DF6A3BGMK · pith_short_8: GABQZA5D

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/GABQZA5DF6A3BGMKXAMMYY54ZJ \
  | 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: 30030c83a32f81b0998ab818cc63bcca65a2668bb189c7b6ac3deb027338bfe0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15864b2d82edc43f94ece570dbd97869b5db1f65c02fc692465bb647d21e5fd1",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-06-06T18:39:42Z",
    "title_canon_sha256": "0c93cdd83c92158787db6dab5340d4d49adc31570ef6134707a0e663d967dfb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.02329",
    "kind": "arxiv",
    "version": 2
  }
}