Pith Number

pith:4U6UOBHT

pith:2012:4U6UOBHT7ZDWVUODBB7BGDHWEJ

not attested not anchored not stored refs pending

Superintegrable St\"ackel Systems on the Plane: Elliptic and Parabolic Coordinates

Andrey V. Tsiganov

arxiv:1204.1801 v2 · 2012-04-09 · nlin.SI · math-ph · math.DS · 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{4U6UOBHT7ZDWVUODBB7BGDHWEJ}

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	2026-05-18T03:55:00.001433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e53d4704f3fe476ad1c3087e130cf62258ebc6bdfe4e9ce27eab14534329a8ce

Aliases

arxiv: 1204.1801 · arxiv_version: 1204.1801v2 · doi: 10.48550/arxiv.1204.1801 · pith_short_12: 4U6UOBHT7ZDW · pith_short_16: 4U6UOBHT7ZDWVUOD · pith_short_8: 4U6UOBHT

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/4U6UOBHT7ZDWVUODBB7BGDHWEJ \
  | 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: e53d4704f3fe476ad1c3087e130cf62258ebc6bdfe4e9ce27eab14534329a8ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a4dba1177502286fe3a7895750053516ef7cb6e308d6c32061a6c824aeb4466",
    "cross_cats_sorted": [
      "math-ph",
      "math.DS",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2012-04-09T05:56:03Z",
    "title_canon_sha256": "654dd80c2a175cae8f575d4cb03666940627188281607cd73fdd83733d1f074c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1801",
    "kind": "arxiv",
    "version": 2
  }
}