Pith Number

pith:UAWQETLD

pith:2015:UAWQETLD376BFSPOKQ2QJYFEEX

not attested not anchored not stored refs pending

Non-integrability of restricted double pendula

Tomasz Stachowiak, Wojciech Szumi\'nski

arxiv:1511.01850 v1 · 2015-11-05 · nlin.CD · math-ph · 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{UAWQETLD376BFSPOKQ2QJYFEEX}

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	2026-05-18T01:27:39.634897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a02d024d63dffc12c9ee543504e0a425c5ff745277e88384be3cf2b60179e513

Aliases

arxiv: 1511.01850 · arxiv_version: 1511.01850v1 · doi: 10.48550/arxiv.1511.01850 · pith_short_12: UAWQETLD376B · pith_short_16: UAWQETLD376BFSPO · pith_short_8: UAWQETLD

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/UAWQETLD376BFSPOKQ2QJYFEEX \
  | 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: a02d024d63dffc12c9ee543504e0a425c5ff745277e88384be3cf2b60179e513

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8094060ecf3c93f387acd3ffe4cd663c9ad191af37898f8faafc1e18a957b118",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2015-11-05T18:47:13Z",
    "title_canon_sha256": "3c50d049ed08d9a90e6f70f4402c84f9b10b53b79eda51f73cb9fd318214d288"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.01850",
    "kind": "arxiv",
    "version": 1
  }
}