Pith Number

pith:ZIT7KV3X

pith:2023:ZIT7KV3XPFSZ7JSWLXZFQYAGGM

not attested not anchored not stored refs pending

Automorphisms of quartic del Pezzo surfaces in characteristic zero

Jonathan M. Smith

arxiv:2308.07904 v1 · 2023-08-15 · math.AG · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZIT7KV3XPFSZ7JSWLXZFQYAGGM}

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.

Cited by

1 paper in Pith

Birational Geometry of sextic del Pezzo surfaces

Receipt and verification

First computed	2026-07-05T06:41:33.082088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca27f5577779659fa6565df25860063338bce6cc89ae2461fed8dafcc280b506

Aliases

arxiv: 2308.07904 · arxiv_version: 2308.07904v1 · doi: 10.48550/arxiv.2308.07904 · pith_short_12: ZIT7KV3XPFSZ · pith_short_16: ZIT7KV3XPFSZ7JSW · pith_short_8: ZIT7KV3X

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/ZIT7KV3XPFSZ7JSWLXZFQYAGGM \
  | 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: ca27f5577779659fa6565df25860063338bce6cc89ae2461fed8dafcc280b506

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fac01255348d3e07e5ae6fae681f704cf8acd5089b22820010774840c4869bc",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2023-08-15T17:43:54Z",
    "title_canon_sha256": "d3fecee20012cfc9c1f2b03586e812e6912a2a985e0539e40739c61e435552cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.07904",
    "kind": "arxiv",
    "version": 1
  }
}