Pith Number

pith:LA343C5Y

pith:2016:LA343C5Y7HR74KAXPUJB2WX7UF

not attested not anchored not stored refs pending

Minimal del Pezzo surfaces of degree $2$ over finite fields

Andrey Trepalin

arxiv:1611.02832 v2 · 2016-11-09 · 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{LA343C5Y7HR74KAXPUJB2WX7UF}

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	2026-05-18T00:35:51.661750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5837cd8bb8f9e3fe28177d121d5affa156857ccc50c4c775ad1ea3d4d6c5d858

Aliases

arxiv: 1611.02832 · arxiv_version: 1611.02832v2 · doi: 10.48550/arxiv.1611.02832 · pith_short_12: LA343C5Y7HR7 · pith_short_16: LA343C5Y7HR74KAX · pith_short_8: LA343C5Y

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/LA343C5Y7HR74KAXPUJB2WX7UF \
  | 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: 5837cd8bb8f9e3fe28177d121d5affa156857ccc50c4c775ad1ea3d4d6c5d858

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf54d2741707120a9619216a6672c7b77462a1fb606274bc6a48d25780d61860",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-11-09T06:38:31Z",
    "title_canon_sha256": "7a817dda3f24eb5997b3d674e1358761e519692ea34cb07618b82eea80e991aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.02832",
    "kind": "arxiv",
    "version": 2
  }
}