Pith Number

pith:CDRBOXHQ

pith:2013:CDRBOXHQAMR6ZQMGZ7H7AM5QDP

not attested not anchored not stored refs pending

A simple global representation for second-order normal forms of Hamiltonian systems relative to periodic flows

J. A. Vallejo, M. Avenda\~no-Camacho, Yu. Vorobjev

arxiv:1301.3244 v3 · 2013-01-15 · math-ph · math.DG · 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{CDRBOXHQAMR6ZQMGZ7H7AM5QDP}

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	2026-05-18T02:52:42.210228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10e2175cf00323ecc186cfcff033b01bf66867c312965cea2df297317cc526a8

Aliases

arxiv: 1301.3244 · arxiv_version: 1301.3244v3 · doi: 10.48550/arxiv.1301.3244 · pith_short_12: CDRBOXHQAMR6 · pith_short_16: CDRBOXHQAMR6ZQMG · pith_short_8: CDRBOXHQ

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/CDRBOXHQAMR6ZQMGZ7H7AM5QDP \
  | 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: 10e2175cf00323ecc186cfcff033b01bf66867c312965cea2df297317cc526a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2f8445227e11500df1a4bc6e1fdb325867e8b5d10f8ea8efe660d67a2d5fe56",
    "cross_cats_sorted": [
      "math.DG",
      "math.DS",
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-01-15T07:10:13Z",
    "title_canon_sha256": "c1cd592c0698ea363d594aa72e2239464bdf465825e9e72bec8ad39dd238abac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3244",
    "kind": "arxiv",
    "version": 3
  }
}