Pith Number

pith:XXPW5GHM

pith:2024:XXPW5GHMUGUPUIRV5HE34UQ45C

not attested not anchored not stored refs pending

Ulrich subvarieties and the non-existence of low rank Ulrich bundles on complete intersections

Angelo Felice Lopez, Debaditya Raychaudhury

arxiv:2405.01154 v4 · 2024-05-02 · 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{XXPW5GHMUGUPUIRV5HE34UQ45C}

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

Ulrich bundles with $c_2(\mathcal E)^2=0$ and connectedness of Ulrich subvarieties

Receipt and verification

First computed	2026-07-05T09:35:48.848890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bddf6e98eca1a8fa2235e9c9be521ce89fc673fea34c16c0fac2259bf5a49200

Aliases

arxiv: 2405.01154 · arxiv_version: 2405.01154v4 · doi: 10.48550/arxiv.2405.01154 · pith_short_12: XXPW5GHMUGUP · pith_short_16: XXPW5GHMUGUPUIRV · pith_short_8: XXPW5GHM

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/XXPW5GHMUGUPUIRV5HE34UQ45C \
  | 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: bddf6e98eca1a8fa2235e9c9be521ce89fc673fea34c16c0fac2259bf5a49200

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bdfb48901a40f9e2ad192ef7bd69492f9fa9d7e26ffc6807fb0c5ad17c4d9a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2024-05-02T10:15:44Z",
    "title_canon_sha256": "ad6aeeb40137b018da9ed6978d3779e9efa9af2eafbaf80b4a167bbe60381de1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.01154",
    "kind": "arxiv",
    "version": 4
  }
}