Pith Number

pith:LQFJETZ3

pith:2024:LQFJETZ3YNVBCTT4OWDF35YVOX

not attested not anchored not stored refs pending

A nodal ghost method based on variational formulation and regular square grid for elliptic problems on arbitrary domains in two space dimensions

Clarissa Astuto, Daniele Boffi, Giovanni Russo, Umberto Zerbinati

arxiv:2402.04048 v2 · 2024-02-06 · math.NA · cs.NA · 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{LQFJETZ3YNVBCTT4OWDF35YVOX}

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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.

Cited by

1 paper in Pith

Physics-Informed Neural Networks for Irregular Domain Mapping and Partial Differential Equations solving

Receipt and verification

First computed	2026-07-05T09:32:42.129673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c0a924f3bc36a114e7c75865df71575f24c6311f00924c704e15ea31179b594

Aliases

arxiv: 2402.04048 · arxiv_version: 2402.04048v2 · doi: 10.48550/arxiv.2402.04048 · pith_short_12: LQFJETZ3YNVB · pith_short_16: LQFJETZ3YNVBCTT4 · pith_short_8: LQFJETZ3

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/LQFJETZ3YNVBCTT4OWDF35YVOX \
  | 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: 5c0a924f3bc36a114e7c75865df71575f24c6311f00924c704e15ea31179b594

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f4ffb86671c30657c2f08b3986301e85f2c0a37973042f6124184c4d0b7f368",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-02-06T14:50:00Z",
    "title_canon_sha256": "87066652ac5fa62f5cab812ea6338a54bba8a4875332781adc65a1421fb473ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.04048",
    "kind": "arxiv",
    "version": 2
  }
}