Pith Number

pith:OTYYLIR4

pith:2012:OTYYLIR4QXXLKTLBSEXFJLTFNE

not attested not anchored not stored refs pending

The Conley-Zehnder indices of the rotating Kepler problem

Joel W. Fish, Otto van Koert, Peter Albers, Urs Frauenfelder

arxiv:1201.2032 v1 · 2012-01-10 · math.SG · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OTYYLIR4QXXLKTLBSEXFJLTFNE}

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	2026-05-18T03:33:50.169174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74f185a23c85eeb54d61912e54ae6569276d380d7d7e0ceda6e52639d0c16a5a

Aliases

arxiv: 1201.2032 · arxiv_version: 1201.2032v1 · doi: 10.48550/arxiv.1201.2032 · pith_short_12: OTYYLIR4QXXL · pith_short_16: OTYYLIR4QXXLKTLB · pith_short_8: OTYYLIR4

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/OTYYLIR4QXXLKTLBSEXFJLTFNE \
  | 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: 74f185a23c85eeb54d61912e54ae6569276d380d7d7e0ceda6e52639d0c16a5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9dff15e05122af4e9b5e0a927bb331797d782f969a2f362232c3b6ec6b60c4a",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2012-01-10T11:56:28Z",
    "title_canon_sha256": "e4e382d3e981dcc1d6f5a9ffd819d9eeba50200435ae80548dce8ea7ee947531"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2032",
    "kind": "arxiv",
    "version": 1
  }
}