Pith Number

pith:L6AU4F7K

pith:2019:L6AU4F7KZPWP5CYTKCKPQQAGEP

not attested not anchored not stored refs pending

Invariant characterization of scalar third-order ODEs that admit the maximal contact symmetry Lie algebra

Ahmad Y. Al-Dweik, F. M. Mahomed, M. T. Mustafa

arxiv:1902.05449 v1 · 2019-02-13 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L6AU4F7KZPWP5CYTKCKPQQAGEP}

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	2026-05-17T23:53:58.651000Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f814e17eacbecfe8b135094f8400623d84b495194c29d10e09ba836c3052463

Aliases

arxiv: 1902.05449 · arxiv_version: 1902.05449v1 · doi: 10.48550/arxiv.1902.05449 · pith_short_12: L6AU4F7KZPWP · pith_short_16: L6AU4F7KZPWP5CYT · pith_short_8: L6AU4F7K

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/L6AU4F7KZPWP5CYTKCKPQQAGEP \
  | 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: 5f814e17eacbecfe8b135094f8400623d84b495194c29d10e09ba836c3052463

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df7411d4b41527a79a9257e9a3bf7e820274092a8cb7eec72e67127d8a52a5fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2019-02-13T13:17:02Z",
    "title_canon_sha256": "6b2599fa49f04f0f5bfc24e7a0ade9608e2b5de87d3564c9ba242cfad575bf61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05449",
    "kind": "arxiv",
    "version": 1
  }
}