Pith Number

pith:76NB4PXE

pith:2002:76NB4PXEV2ZJO36QJ64ZCD5EIQ

not attested not anchored not stored refs pending

A Laplace ladder of discrete Laplace equations

Maciej Nieszporski

arxiv:nlin/0203014 v1 · 2002-03-08 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{76NB4PXEV2ZJO36QJ64ZCD5EIQ}

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	2026-05-18T01:05:22.110180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff9a1e3ee4aeb2976fd04fb9910fa4440d522a3baaa194a3846fe502630ba11d

Aliases

arxiv: nlin/0203014 · arxiv_version: nlin/0203014v1 · doi: 10.48550/arxiv.nlin/0203014 · pith_short_12: 76NB4PXEV2ZJ · pith_short_16: 76NB4PXEV2ZJO36Q · pith_short_8: 76NB4PXE

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/76NB4PXEV2ZJO36QJ64ZCD5EIQ \
  | 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: ff9a1e3ee4aeb2976fd04fb9910fa4440d522a3baaa194a3846fe502630ba11d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a88cbab6b3db88a76bb25ecd6a4b0876976dab8ed799ccbf6ff6707a3bfc192e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2002-03-08T14:58:21Z",
    "title_canon_sha256": "0c573d20881b29c9e743b7eb52feb8957db90685f5bf17ee8f1a704a3535172f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0203014",
    "kind": "arxiv",
    "version": 1
  }
}