Pith Number

pith:SF52CWL2

pith:2011:SF52CWL2GH4JUTBIQZO73QXQMZ

not attested not anchored not stored refs pending

Regularity and decay of solutions of nonlinear harmonic oscillators

Fabio Nicola, Marco Cappiello

arxiv:1104.2139 v1 · 2011-04-12 · math.AP · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SF52CWL2GH4JUTBIQZO73QXQMZ}

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	2026-05-18T02:26:53.225810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

917ba1597a31f89a4c28865dfdc2f0664390cf252d8a576a9ca863cea0d524b7

Aliases

arxiv: 1104.2139 · arxiv_version: 1104.2139v1 · doi: 10.48550/arxiv.1104.2139 · pith_short_12: SF52CWL2GH4J · pith_short_16: SF52CWL2GH4JUTBI · pith_short_8: SF52CWL2

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/SF52CWL2GH4JUTBIQZO73QXQMZ \
  | 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: 917ba1597a31f89a4c28865dfdc2f0664390cf252d8a576a9ca863cea0d524b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "513720ca6cb864cc43c140ca52781bd728e384ec76a3f3bb693c73717b52e673",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-04-12T08:42:27Z",
    "title_canon_sha256": "45f832bf005b5a645bb6875368c52c7d199b5bbde50732b6794a2807615d35c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2139",
    "kind": "arxiv",
    "version": 1
  }
}