Pith Number

pith:5XR5CWOM

pith:2019:5XR5CWOM2N7SUMHCDG4SP5H7OV

not attested not anchored not stored refs pending

El m\`etode de les l\'inies per a la resoluci\'o num\`erica d'equacions en derivades parcials. The method of lines for numerical solutions of partial differential equations

C. Dalf\'o, M. A. Fiol

arxiv:1903.03431 v1 · 2019-02-27 · cs.NA · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5XR5CWOM2N7SUMHCDG4SP5H7OV}

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	2026-05-17T23:51:45.504351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ede3d159ccd37f2a30e219b927f4ff756ea1094d28007235359483b221b6c6ff

Aliases

arxiv: 1903.03431 · arxiv_version: 1903.03431v1 · doi: 10.48550/arxiv.1903.03431 · pith_short_12: 5XR5CWOM2N7S · pith_short_16: 5XR5CWOM2N7SUMHC · pith_short_8: 5XR5CWOM

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/5XR5CWOM2N7SUMHCDG4SP5H7OV \
  | 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: ede3d159ccd37f2a30e219b927f4ff756ea1094d28007235359483b221b6c6ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8d705e6d85d59ff4c6dff18718b73fa2e0c66de2b2ed6d514163a4ac900d50a",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2019-02-27T11:33:14Z",
    "title_canon_sha256": "0c425f0abce8e41dd92bd06c03c9f4440dc5dc40f26fc8f1dfbf9d9a07119666"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.03431",
    "kind": "arxiv",
    "version": 1
  }
}