Pith Number

pith:4V57AEAF

pith:2012:4V57AEAFXV4SCBTPU4FCNM7YYK

not attested not anchored not stored refs pending

The dynamics of the pendulum suspended on the forced Duffing oscillator

Piotr Brzeski, Przemyslaw Perlikowski, Serhiy Yanchuk, Tomasz Kapitaniak

arxiv:1202.5937 v2 · 2012-02-27 · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4V57AEAFXV4SCBTPU4FCNM7YYK}

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	2026-05-18T01:58:19.280224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e57bf01005bd7921066fa70a26b3f8c29285dfa0e56e90cdc761196d483b3779

Aliases

arxiv: 1202.5937 · arxiv_version: 1202.5937v2 · doi: 10.48550/arxiv.1202.5937 · pith_short_12: 4V57AEAFXV4S · pith_short_16: 4V57AEAFXV4SCBTP · pith_short_8: 4V57AEAF

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/4V57AEAFXV4SCBTPU4FCNM7YYK \
  | 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: e57bf01005bd7921066fa70a26b3f8c29285dfa0e56e90cdc761196d483b3779

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c12db38b36ee4f4b4a346feb7de6a2f6c68e9cc84562042daf42c730e0c3c3b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2012-02-27T14:02:54Z",
    "title_canon_sha256": "78606cb3a952b2b30deb7b9d57d758f0a359bc4d76719d64d04bd90e87f6afae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5937",
    "kind": "arxiv",
    "version": 2
  }
}