Pith Number

pith:MKKFVDP3

pith:2012:MKKFVDP3LR5VDGIZUYSTLZQCW7

not attested not anchored not stored refs pending

On the periodic solutions of a generalized smooth or non-smooth perturbed planar double pendulum

Douglas Duarte Novaes, Jaume Llibre, Marco Antonio Teixeira

arxiv:1203.0498 v2 · 2012-03-02 · 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{MKKFVDP3LR5VDGIZUYSTLZQCW7}

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	2026-05-18T01:11:05.457122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62945a8dfb5c7b519919a62535e602b7c70fed35e114173bd4425c0a38ff0d72

Aliases

arxiv: 1203.0498 · arxiv_version: 1203.0498v2 · doi: 10.48550/arxiv.1203.0498 · pith_short_12: MKKFVDP3LR5V · pith_short_16: MKKFVDP3LR5VDGIZ · pith_short_8: MKKFVDP3

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/MKKFVDP3LR5VDGIZUYSTLZQCW7 \
  | 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: 62945a8dfb5c7b519919a62535e602b7c70fed35e114173bd4425c0a38ff0d72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16fb5bf319fc3fd6c95eab52bb0c8fb83732e6c079ba8f045b2505d15c1f469c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2012-03-02T15:48:25Z",
    "title_canon_sha256": "00181ef4f0001f3b91d8bc3d76cf290ed40c1c1597ea4a3a19416c274515994c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.0498",
    "kind": "arxiv",
    "version": 2
  }
}