Pith Number

pith:JQYUQYSV

pith:2024:JQYUQYSVWC36R7WJQQGO6FUXAC

not attested not anchored not stored refs pending

Quartic del Pezzo surfaces without quadratic points

Bianca Viray, Brendan Creutz

arxiv:2408.08436 v2 · 2024-08-15 · math.NT · 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{JQYUQYSVWC36R7WJQQGO6FUXAC}

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

Counting quadratic points on Fano varieties

Receipt and verification

First computed	2026-07-05T11:14:48.876875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c31486255b0b7e8fec9840cef169700b50e7c8531f0474ea14f6516857e8db7

Aliases

arxiv: 2408.08436 · arxiv_version: 2408.08436v2 · doi: 10.48550/arxiv.2408.08436 · pith_short_12: JQYUQYSVWC36 · pith_short_16: JQYUQYSVWC36R7WJ · pith_short_8: JQYUQYSV

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/JQYUQYSVWC36R7WJQQGO6FUXAC \
  | 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: 4c31486255b0b7e8fec9840cef169700b50e7c8531f0474ea14f6516857e8db7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fe1681a0ae1d429df3ccc09bf54e15a6a58dcb00cf6c81a8d4210d56d554832",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2024-08-15T22:07:31Z",
    "title_canon_sha256": "f0150ce067f8a99a1e6a0738d952296c642f74452741d1945a179f6bde3e0611"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.08436",
    "kind": "arxiv",
    "version": 2
  }
}