Pith Number

pith:2SIMANAT

pith:2026:2SIMANAT7MKJ7SGLNV4JXPA4V2

not attested not anchored not stored refs pending

Automorphism groups of Mori Del Pezzo fibrations over an irrational curve

Pascal Fong, Susanna Zimmermann

arxiv:2603.26416 v2 · 2026-03-27 · 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{2SIMANAT7MKJ7SGLNV4JXPA4V2}

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	2026-05-20T00:05:43.901456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d490c03413fb149fc8cb6d789bbc1caeb42544a624dc0df761ec14713d887883

Aliases

arxiv: 2603.26416 · arxiv_version: 2603.26416v2 · doi: 10.48550/arxiv.2603.26416 · pith_short_12: 2SIMANAT7MKJ · pith_short_16: 2SIMANAT7MKJ7SGL · pith_short_8: 2SIMANAT

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/2SIMANAT7MKJ7SGLNV4JXPA4V2 \
  | 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: d490c03413fb149fc8cb6d789bbc1caeb42544a624dc0df761ec14713d887883

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09c2ae635644f0dad5d21469afec3627291f4d0f1d5d28e5870676f0cc5a01d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-03-27T13:46:06Z",
    "title_canon_sha256": "6ce06d39e6d217d86d62654e1164ab70eff9d2a2de71493864d4e2f0a04bc13d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.26416",
    "kind": "arxiv",
    "version": 2
  }
}