Pith Number

pith:JWOS5WNO

pith:2013:JWOS5WNOBO2ANBI4IODVTZ2NN5

not attested not anchored not stored refs pending

Non-integrability of the dumbbell and point mass problem

Andrzej J. Maciejewski, Leon Simpson, Maria Przybylska, Wojciech Szumi\'nski

arxiv:1304.6369 v1 · 2013-04-23 · nlin.CD · math-ph · math.DS · math.MP · 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{JWOS5WNOBO2ANBI4IODVTZ2NN5}

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	2026-05-18T01:50:23.005334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d9d2ed9ae0bb406851c438759e74d6f5b59e81d9a6e2ffce818fdb9db552aef

Aliases

arxiv: 1304.6369 · arxiv_version: 1304.6369v1 · doi: 10.48550/arxiv.1304.6369 · pith_short_12: JWOS5WNOBO2A · pith_short_16: JWOS5WNOBO2ANBI4 · pith_short_8: JWOS5WNO

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/JWOS5WNOBO2ANBI4IODVTZ2NN5 \
  | 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: 4d9d2ed9ae0bb406851c438759e74d6f5b59e81d9a6e2ffce818fdb9db552aef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2170cdf5fd4b0a527428b8d37f3a53cad9ddada4c61b5878d939c34ad510ecd1",
    "cross_cats_sorted": [
      "math-ph",
      "math.DS",
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2013-04-23T18:18:46Z",
    "title_canon_sha256": "7e0997b79a2030bc61af37584a76aaa307d094fbb39aaf3b0b200bc917764d4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6369",
    "kind": "arxiv",
    "version": 1
  }
}