Pith Number

pith:WGKPD2FW

pith:2011:WGKPD2FWFVDOWSKDTO4HRL6V3L

not attested not anchored not stored refs pending

Nonholonomic LL systems on central extensions and the hydrodynamic Chaplygin sleigh with circulation

Joris Vankerschaver, Luis C. Garc\'ia-Naranjo

arxiv:1109.3210 v2 · 2011-09-14 · 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{WGKPD2FWFVDOWSKDTO4HRL6V3L}

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	2026-05-18T03:21:33.855509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b194f1e8b62d46eb49439bb878afd5daf9a8a50fc7ac2ddc1589284616d53bdd

Aliases

arxiv: 1109.3210 · arxiv_version: 1109.3210v2 · doi: 10.48550/arxiv.1109.3210 · pith_short_12: WGKPD2FWFVDO · pith_short_16: WGKPD2FWFVDOWSKD · pith_short_8: WGKPD2FW

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/WGKPD2FWFVDOWSKDTO4HRL6V3L \
  | 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: b194f1e8b62d46eb49439bb878afd5daf9a8a50fc7ac2ddc1589284616d53bdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aca613513848a0a15691d421332d701bdedabcba21f1138f2db4894c4b7141d3",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2011-09-14T21:00:20Z",
    "title_canon_sha256": "894cc2cbaa907c95b50ad6009da8073a88f19f9aacbdabf7e0f63dac90853dc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3210",
    "kind": "arxiv",
    "version": 2
  }
}