Pith Number

pith:LM64TNHZ

pith:2009:LM64TNHZKHFMKCPC4GW3AHDK3P

not attested not anchored not stored refs pending

Darboux points and integrability of homogeneous Hamiltonian systems with three and more degrees of freedom

Maria Przybylska

arxiv:0903.5063 v1 · 2009-03-29 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LM64TNHZKHFMKCPC4GW3AHDK3P}

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	2026-05-18T02:14:18.723963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b3dc9b4f951cac509e2e1adb01c6adbf27508b6dced9c3044d1ff0c038f4dc2

Aliases

arxiv: 0903.5063 · arxiv_version: 0903.5063v1 · doi: 10.48550/arxiv.0903.5063 · pith_short_12: LM64TNHZKHFM · pith_short_16: LM64TNHZKHFMKCPC · pith_short_8: LM64TNHZ

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/LM64TNHZKHFMKCPC4GW3AHDK3P \
  | 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: 5b3dc9b4f951cac509e2e1adb01c6adbf27508b6dced9c3044d1ff0c038f4dc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d90e6df79142c73719715a69115784f3b687c86c56bbe4b1d678e1dae0e683af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2009-03-29T16:39:14Z",
    "title_canon_sha256": "3ed11b302d4f56d0191909a64014c3dff72b0fc1097ebac11b917adc880eb4e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.5063",
    "kind": "arxiv",
    "version": 1
  }
}