Pith Number

pith:CH5TTZHM

pith:2008:CH5TTZHM3G7JYIHHQTUT5JSH46

not attested not anchored not stored refs pending

Q-factorial Gorenstein toric Fano varieties with large Picard number

Benjamin Nill, Mikkel {\O}bro

arxiv:0805.4533 v1 · 2008-05-29 · math.AG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CH5TTZHM3G7JYIHHQTUT5JSH46}

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	2026-05-18T01:09:24.472104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11fb39e4ecd9be9c20e784e93ea647e782cba3ebef4cc2cb77b3d0d178972e72

Aliases

arxiv: 0805.4533 · arxiv_version: 0805.4533v1 · doi: 10.48550/arxiv.0805.4533 · pith_short_12: CH5TTZHM3G7J · pith_short_16: CH5TTZHM3G7JYIHH · pith_short_8: CH5TTZHM

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/CH5TTZHM3G7JYIHHQTUT5JSH46 \
  | 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: 11fb39e4ecd9be9c20e784e93ea647e782cba3ebef4cc2cb77b3d0d178972e72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "272d9190878f4eea45681a3345c571f90631dac89ff7d355ef28ab113a834947",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2008-05-29T16:38:32Z",
    "title_canon_sha256": "43df3ae7d8f5e3fb1b39801320520c2d7243fe893547847a1f77ec6431ecff8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.4533",
    "kind": "arxiv",
    "version": 1
  }
}