Pith Number

pith:PUA5BIK4

pith:2007:PUA5BIK42QYIIN4PFLBNLA4VSF

not attested not anchored not stored refs pending

Generic dynamics of 4-dimensional C2 Hamiltonian systems

Joao Lopes Dias, Mario Bessa

arxiv:0704.3028 v2 · 2007-04-23 · 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{PUA5BIK42QYIIN4PFLBNLA4VSF}

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	2026-05-18T04:39:59.916513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d01d0a15cd43084378f2ac2d58395914b06b2d99a518486112ea1e033c35917

Aliases

arxiv: 0704.3028 · arxiv_version: 0704.3028v2 · doi: 10.48550/arxiv.0704.3028 · pith_short_12: PUA5BIK42QYI · pith_short_16: PUA5BIK42QYIIN4P · pith_short_8: PUA5BIK4

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/PUA5BIK42QYIIN4PFLBNLA4VSF \
  | 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: 7d01d0a15cd43084378f2ac2d58395914b06b2d99a518486112ea1e033c35917

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2756a4fc64100130a08a942c8d8f740538a9cfb1fa68954aad86e5ae9da3f118",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DS",
    "submitted_at": "2007-04-23T15:19:49Z",
    "title_canon_sha256": "d194ab7d95d4b2bb6b0686cdc550dd85d8bae54ec843dcc371389dd3f732236e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.3028",
    "kind": "arxiv",
    "version": 2
  }
}