Pith Number

pith:YPHZSXYT

pith:2008:YPHZSXYTCX4UH2MYDY6UM365ZP

not attested not anchored not stored refs pending

Reduction of Almost Poisson brackets and Hamiltonization of the Chaplygin Sphere

Luis C. Garcia-Naranjo

arxiv:0808.0854 v1 · 2008-08-06 · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YPHZSXYTCX4UH2MYDY6UM365ZP}

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	2026-05-18T03:20:36.049482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3cf995f1315f943e9981e3d466fddcbf4c6592f1bc74eceea4b15283d3ebc3c

Aliases

arxiv: 0808.0854 · arxiv_version: 0808.0854v1 · doi: 10.48550/arxiv.0808.0854 · pith_short_12: YPHZSXYTCX4U · pith_short_16: YPHZSXYTCX4UH2MY · pith_short_8: YPHZSXYT

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/YPHZSXYTCX4UH2MYDY6UM365ZP \
  | 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: c3cf995f1315f943e9981e3d466fddcbf4c6592f1bc74eceea4b15283d3ebc3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be380b50be6a7a68ecced8cc2008e9d47ff823c00862c86b11fb377d0b7a569e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2008-08-06T19:22:20Z",
    "title_canon_sha256": "71ab6fd581d35bdceffba83330b851e24d0968fc6b4c35bd3ac8a6ab47da2fad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.0854",
    "kind": "arxiv",
    "version": 1
  }
}