Pith Number

pith:3YLJOJZE

pith:2023:3YLJOJZEKK6Y26XFDWUO6U72KI

not attested not anchored not stored refs pending

Classifying log del Pezzo surfaces with torus action

Daniel Haettig, Juergen Hausen, Justus Springer

arxiv:2302.03095 v1 · 2023-02-06 · 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{3YLJOJZEKK6Y26XFDWUO6U72KI}

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

K*-surfaces of Picard number one and integral degree

Receipt and verification

First computed	2026-07-05T11:17:30.143179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de1697272452bd8d7ae51da8ef53fa5211d2894107725f6f10385d38d401b4f1

Aliases

arxiv: 2302.03095 · arxiv_version: 2302.03095v1 · doi: 10.48550/arxiv.2302.03095 · pith_short_12: 3YLJOJZEKK6Y · pith_short_16: 3YLJOJZEKK6Y26XF · pith_short_8: 3YLJOJZE

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/3YLJOJZEKK6Y26XFDWUO6U72KI \
  | 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: de1697272452bd8d7ae51da8ef53fa5211d2894107725f6f10385d38d401b4f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f74cfc4d9ccbd200833c508f048ae8d7dcd03555e6047df1c8e67bed0231ab19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2023-02-06T19:53:05Z",
    "title_canon_sha256": "9db6449da4fa94320d9f469a63d891a14cc868c739654cb2dc6d33065fdb765a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.03095",
    "kind": "arxiv",
    "version": 1
  }
}