Pith Number

pith:JE7WPX3V

pith:2013:JE7WPX3VQC3ENZLLKVDX6CCSC7

not attested not anchored not stored refs pending

Fano varieties with small non-klt locus

Andreas H\"oring, Carla Novelli, Mauro C. Beltrametti

arxiv:1309.5342 v2 · 2013-09-20 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JE7WPX3VQC3ENZLLKVDX6CCSC7}

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	2026-05-18T00:32:21.959843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

493f67df7580b646e56b55477f085217d7d6041dda04c23d4045a230ac51e946

Aliases

arxiv: 1309.5342 · arxiv_version: 1309.5342v2 · doi: 10.48550/arxiv.1309.5342 · pith_short_12: JE7WPX3VQC3E · pith_short_16: JE7WPX3VQC3ENZLL · pith_short_8: JE7WPX3V

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/JE7WPX3VQC3ENZLLKVDX6CCSC7 \
  | 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: 493f67df7580b646e56b55477f085217d7d6041dda04c23d4045a230ac51e946

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccf7b74e62db63216e9e5159e87a49bcd19c808a7df11241521fd0cdd0cc8a3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-09-20T18:42:32Z",
    "title_canon_sha256": "d9f449122125f710b3d0583c20600fd394ad7f368f27001559c69ecc2dd6bd4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5342",
    "kind": "arxiv",
    "version": 2
  }
}