Pith Number

pith:WE4FDVZG

pith:2011:WE4FDVZGKB3RIS2JSKE3KUFL3Z

not attested not anchored not stored refs pending

A fast solver for Poisson problems on infinite regular lattices

A. Gillman, P.G. Martinsson

arxiv:1105.3505 v2 · 2011-05-18 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WE4FDVZGKB3RIS2JSKE3KUFL3Z}

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	2026-05-18T04:05:27.497450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b13851d7265077144b499289b550abde60e977c75a7d4e9d9eb91ba10c9e8709

Aliases

arxiv: 1105.3505 · arxiv_version: 1105.3505v2 · doi: 10.48550/arxiv.1105.3505 · pith_short_12: WE4FDVZGKB3R · pith_short_16: WE4FDVZGKB3RIS2J · pith_short_8: WE4FDVZG

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/WE4FDVZGKB3RIS2JSKE3KUFL3Z \
  | 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: b13851d7265077144b499289b550abde60e977c75a7d4e9d9eb91ba10c9e8709

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a605b9d26fd8953977b1ad6725e2ced1d8935dc94be0cc507c8f5fb3acf966a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-05-18T00:25:57Z",
    "title_canon_sha256": "d43c487590513880603a2a51f5155260105f88e7e0d310446716ade4fbffd5f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3505",
    "kind": "arxiv",
    "version": 2
  }
}