Pith Number

pith:2GPOET44

pith:2023:2GPOET44DNNYBP7TVAECU2R5J7

not attested not anchored not stored refs pending

The special Brauer group and twisted Picard varieties

Daniel Huybrechts, Dominique Mattei

arxiv:2310.04032 v2 · 2023-10-06 · 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{2GPOET44DNNYBP7TVAECU2R5J7}

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

3 papers in Pith

Brauer groups of smooth loci in linear systems and torsors over Jacobians of plane curves

Topology of projective Tate-Shafarevich twists

Receipt and verification

First computed	2026-07-05T10:06:37.991442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d19ee24f9c1b5b80bff3a8082a6a3d4fd27b639fed33b7e5d8f3daef5e8249a1

Aliases

arxiv: 2310.04032 · arxiv_version: 2310.04032v2 · doi: 10.48550/arxiv.2310.04032 · pith_short_12: 2GPOET44DNNY · pith_short_16: 2GPOET44DNNYBP7T · pith_short_8: 2GPOET44

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/2GPOET44DNNYBP7TVAECU2R5J7 \
  | 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: d19ee24f9c1b5b80bff3a8082a6a3d4fd27b639fed33b7e5d8f3daef5e8249a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d1b3d74406f9a50fc0a5e338240c448cb95df5824d693b94f91428d2bacf285",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2023-10-06T05:52:11Z",
    "title_canon_sha256": "535e31f2908b38116ad555458ed8590af3fece9c977bd1e9a4d4a1181f2540ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2310.04032",
    "kind": "arxiv",
    "version": 2
  }
}