Pith Number

pith:C5UEQL3U

pith:2012:C5UEQL3UDKN7KKOBSXLGAHMCWE

not attested not anchored not stored refs pending

Three-orbifolds with positive scalar curvature

Hong Huang

arxiv:1210.7331 v1 · 2012-10-27 · 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{C5UEQL3UDKN7KKOBSXLGAHMCWE}

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	2026-05-18T03:42:10.463109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1768482f741a9bf529c195d6601d82b13d0ea410689c46b52f58406b0942d977

Aliases

arxiv: 1210.7331 · arxiv_version: 1210.7331v1 · doi: 10.48550/arxiv.1210.7331 · pith_short_12: C5UEQL3UDKN7 · pith_short_16: C5UEQL3UDKN7KKOB · pith_short_8: C5UEQL3U

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/C5UEQL3UDKN7KKOBSXLGAHMCWE \
  | 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: 1768482f741a9bf529c195d6601d82b13d0ea410689c46b52f58406b0942d977

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52cb8b6d22c1af95b8ec80bce2857a1c412f16457413a76ac9aae784323a2d66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-10-27T15:00:08Z",
    "title_canon_sha256": "340675aeae54f6ced69c518ecdaec61c1b84405ac8eeffc7d1c143f60cf864fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7331",
    "kind": "arxiv",
    "version": 1
  }
}