Pith Number

pith:NOCBDFSU

pith:2010:NOCBDFSULMUQI6F37RHNPI33YW

not attested not anchored not stored refs pending

Fundamental divisors on Fano varieties of index n-3

Enrica Floris

arxiv:1009.0812 v2 · 2010-09-04 · 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{NOCBDFSULMUQI6F37RHNPI33YW}

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	2026-05-18T04:04:53.552617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b841196545b290478bbfc4ed7a37bc5a4d4de4a243931bf221e44c127660ae2

Aliases

arxiv: 1009.0812 · arxiv_version: 1009.0812v2 · doi: 10.48550/arxiv.1009.0812 · pith_short_12: NOCBDFSULMUQ · pith_short_16: NOCBDFSULMUQI6F3 · pith_short_8: NOCBDFSU

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/NOCBDFSULMUQI6F37RHNPI33YW \
  | 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: 6b841196545b290478bbfc4ed7a37bc5a4d4de4a243931bf221e44c127660ae2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6193d142bbff4b91a7228d724fb6f3e200f4658b31404c8f0a52346da4da958",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-09-04T07:37:07Z",
    "title_canon_sha256": "41056f863f4e13744edf5b267b245a2db6ac28c83da18b8c49268c7f0a962037"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0812",
    "kind": "arxiv",
    "version": 2
  }
}