Pith Number

pith:GNAQXGAV

pith:2012:GNAQXGAVS7HY7JMKZDZKAAEKDQ

not attested not anchored not stored refs pending

Lower-dimensional invariant tori for perturbations of a class of non-convex Hamiltonian functions

Guido Gentile, Livia Corsi, Roberto Feola

arxiv:1209.2893 v1 · 2012-09-13 · math.DS · math-ph · math.CA · 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{GNAQXGAVS7HY7JMKZDZKAAEKDQ}

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	2026-05-18T01:54:29.517710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33410b981597cf8fa58ac8f2a0008a1c3b9010c86617f5cb573a3f13c03df68a

Aliases

arxiv: 1209.2893 · arxiv_version: 1209.2893v1 · doi: 10.48550/arxiv.1209.2893 · pith_short_12: GNAQXGAVS7HY · pith_short_16: GNAQXGAVS7HY7JMK · pith_short_8: GNAQXGAV

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/GNAQXGAVS7HY7JMKZDZKAAEKDQ \
  | 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: 33410b981597cf8fa58ac8f2a0008a1c3b9010c86617f5cb573a3f13c03df68a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d4c6f1d5bcb0422dc8c0d30761ccc04706ca0d36778ffa1e7e0354d220d726d",
    "cross_cats_sorted": [
      "math-ph",
      "math.CA",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2012-09-13T13:51:35Z",
    "title_canon_sha256": "08ae33ff7c763fa0ce6b8a291e2b691fc212f8290e1a20651501dad2bf7daf44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2893",
    "kind": "arxiv",
    "version": 1
  }
}