Pith Number

pith:E4WWE2QD

pith:2013:E4WWE2QDFCZX6B2BFTVRWKV6KG

not attested not anchored not stored refs pending

The Cartan-Hadamard conjecture and The Little Prince

Beno\^it Kloeckner (LAMA, Greg Kuperberg (UC Davis), If)

arxiv:1303.3115 v3 · 2013-03-13 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4WWE2QDFCZX6B2BFTVRWKV6KG}

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	2026-05-18T00:50:58.151972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

272d626a0328b37f07412ceb1b2abe51a094ea72fd41873bf059646818f1692f

Aliases

arxiv: 1303.3115 · arxiv_version: 1303.3115v3 · doi: 10.48550/arxiv.1303.3115 · pith_short_12: E4WWE2QDFCZX · pith_short_16: E4WWE2QDFCZX6B2B · pith_short_8: E4WWE2QD

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/E4WWE2QDFCZX6B2BFTVRWKV6KG \
  | 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: 272d626a0328b37f07412ceb1b2abe51a094ea72fd41873bf059646818f1692f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b5602345c6aa439b6b85d280e8dcec162422d24eae012fd79cd20a44ce7876a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-03-13T09:45:13Z",
    "title_canon_sha256": "7eb62ec57fcdd8f401f66fe19c90329b1aca2d018c0180c3c57b6d86acd5d09e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3115",
    "kind": "arxiv",
    "version": 3
  }
}