Pith Number

pith:QXKGYCZR

pith:2012:QXKGYCZR2FENSOHEUZU7N7ETSX

not attested not anchored not stored refs pending

Hyperbolicity and Stability for Hamiltonian flows

J. Rocha, M. Bessa, M. J. Torres

arxiv:1204.1161 v1 · 2012-04-05 · 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{QXKGYCZR2FENSOHEUZU7N7ETSX}

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	2026-05-18T03:28:06.220561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85d46c0b31d148d938e4a669f6fc9395c15ac3bc6ba60470563e7ac100997f53

Aliases

arxiv: 1204.1161 · arxiv_version: 1204.1161v1 · doi: 10.48550/arxiv.1204.1161 · pith_short_12: QXKGYCZR2FEN · pith_short_16: QXKGYCZR2FENSOHE · pith_short_8: QXKGYCZR

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/QXKGYCZR2FENSOHEUZU7N7ETSX \
  | 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: 85d46c0b31d148d938e4a669f6fc9395c15ac3bc6ba60470563e7ac100997f53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "997ba1fc4f6b4e509362d6f5f09ca6cdbce6047d4655c93531260e21265b27ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2012-04-05T09:36:36Z",
    "title_canon_sha256": "d652d9be1e3d3d74043fe27d2d24ffd7a99dd1e51ebf2eddaa4d1022e953cc1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1161",
    "kind": "arxiv",
    "version": 1
  }
}