Pith Number

pith:W3JUZGNS

pith:2014:W3JUZGNSVY2H3PKTNSSFDB7JDX

not attested not anchored not stored refs pending

Invariant Discretization of Partial Differential Equations Admitting Infinite-Dimensional Symmetry Groups

Francis Valiquette, Raphael Rebelo

arxiv:1401.4380 v2 · 2014-01-08 · math.NA · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W3JUZGNSVY2H3PKTNSSFDB7JDX}

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	2026-05-18T02:26:46.063902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6d34c99b2ae347dbd536ca45187e91de1ac2d9a8aa6c39bc80fe587a7ed2337

Aliases

arxiv: 1401.4380 · arxiv_version: 1401.4380v2 · doi: 10.48550/arxiv.1401.4380 · pith_short_12: W3JUZGNSVY2H · pith_short_16: W3JUZGNSVY2H3PKT · pith_short_8: W3JUZGNS

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/W3JUZGNSVY2H3PKTNSSFDB7JDX \
  | 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: b6d34c99b2ae347dbd536ca45187e91de1ac2d9a8aa6c39bc80fe587a7ed2337

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcadfd0460d21a7604699a77e4e007dd949fa6fbf4cc08cdfb54a75cbb997483",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-01-08T01:20:49Z",
    "title_canon_sha256": "22c387ffcee00ccedbc88ce25cda5ec9773b6ca71ea41d10d4d451e45a55e53e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4380",
    "kind": "arxiv",
    "version": 2
  }
}