Pith Number

pith:AANPYVIM

pith:1995:AANPYVIMSDL7JZOKKFCF6SNTUY

not attested not anchored not stored refs pending

On the algebraic non-integrability of the Halphen system

76821 Mont Saint Aignan Cedex, 87-100 Toru\'n, Andrzej J.~Maciejewski (Institute of Astronomy, Chopina 12-18, France, Jean-Marie Strelcyn (D\'epartement de Math\'ematiques, N. Copernicus University, Poland), Universit\'e de Rouen, URA CNRS 1378)

arxiv:solv-int/9505002 v1 · 1995-05-12 · solv-int · 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{AANPYVIMSDL7JZOKKFCF6SNTUY}

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	2026-05-18T01:05:00.130948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

001afc550c90d7f4e5ca51445f49b3a60c07cbefbbccbe07761c40c12fc707c1

Aliases

arxiv: solv-int/9505002 · arxiv_version: solv-int/9505002v1 · doi: 10.48550/arxiv.solv-int/9505002 · pith_short_12: AANPYVIMSDL7 · pith_short_16: AANPYVIMSDL7JZOK · pith_short_8: AANPYVIM

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/AANPYVIMSDL7JZOKKFCF6SNTUY \
  | 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: 001afc550c90d7f4e5ca51445f49b3a60c07cbefbbccbe07761c40c12fc707c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c0bfe0ce55a4d616ee04cad7251491778bf9781d95904dc2730dffd9ec14fa4",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "",
    "primary_cat": "solv-int",
    "submitted_at": "1995-05-12T16:17:23Z",
    "title_canon_sha256": "fffab4f562248582c09effba5f845842746b633bddc7b60e24c2b98820397e52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "solv-int/9505002",
    "kind": "arxiv",
    "version": 1
  }
}