Pith Number

pith:37AABNYD

pith:2015:37AABNYDJKZ6LSPIX3CLQ2T2SB

not attested not anchored not stored refs pending

Normal forms \`a la Moser for aperiodically time-dependent Hamiltonians in the vicinity of a hyperbolic equilibrium

Alessandro Fortunati, Stephen Wiggins

arxiv:1503.05134 v2 · 2015-03-17 · 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{37AABNYDJKZ6LSPIX3CLQ2T2SB}

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	2026-05-18T01:07:57.106559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfc000b7034ab3e5c9e8bec4b86a7a9053c8cd233cb60b5a459e0bf5fcce206c

Aliases

arxiv: 1503.05134 · arxiv_version: 1503.05134v2 · doi: 10.48550/arxiv.1503.05134 · pith_short_12: 37AABNYDJKZ6 · pith_short_16: 37AABNYDJKZ6LSPI · pith_short_8: 37AABNYD

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/37AABNYDJKZ6LSPIX3CLQ2T2SB \
  | 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: dfc000b7034ab3e5c9e8bec4b86a7a9053c8cd233cb60b5a459e0bf5fcce206c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "094ffea8e3ac8748af542dc98fe368002594a9acaa6182ca928f7b46aa42e4c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-03-17T17:44:51Z",
    "title_canon_sha256": "686da46a94f27645ea2c31064970fdef43e0c5eef21ec3bf4c3c80b2eabed8fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.05134",
    "kind": "arxiv",
    "version": 2
  }
}