Pith Number

pith:FM7NKIV6

pith:2018:FM7NKIV6G2RZ4NSMU3VPIECJO5

not attested not anchored not stored refs pending

Numerical inverse Laplace transform for convection-diffusion equations

Giancarlo Nino, Maria L\'opez-Fern\'andez, Nicola Guglielmi

arxiv:1801.02849 v2 · 2018-01-09 · 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{FM7NKIV6G2RZ4NSMU3VPIECJO5}

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	2026-05-17T23:39:32.483759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b3ed522be36a39e364ca6eaf410497773876ecef9e7dd01071f7a0ff5b7bf39

Aliases

arxiv: 1801.02849 · arxiv_version: 1801.02849v2 · doi: 10.48550/arxiv.1801.02849 · pith_short_12: FM7NKIV6G2RZ · pith_short_16: FM7NKIV6G2RZ4NSM · pith_short_8: FM7NKIV6

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/FM7NKIV6G2RZ4NSMU3VPIECJO5 \
  | 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: 2b3ed522be36a39e364ca6eaf410497773876ecef9e7dd01071f7a0ff5b7bf39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc084bafa5cb9ccdff2fe10a9db88173a31c6b4544d7a2d8bba6862a8e38a841",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-01-09T09:34:29Z",
    "title_canon_sha256": "f5844edd3c722ddb31ad0c37bb0e48b6300755423dbff34664fa6dd2764d0988"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02849",
    "kind": "arxiv",
    "version": 2
  }
}