Pith Number

pith:QVHNKAJD

pith:2013:QVHNKAJDD3XYBSFDDADPUQYDGG

not attested not anchored not stored refs pending

Generalized Lazarsfeld-Mukai bundles and a conjecture of Donagi and Morrison

Margherita Lelli-Chiesa

arxiv:1310.1830 v2 · 2013-10-07 · 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{QVHNKAJDD3XYBSFDDADPUQYDGG}

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	2026-05-18T02:40:02.202085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

854ed501231eef80c8a31806fa430331a3d88ad449d82b2221ae6fb66c0f6fa7

Aliases

arxiv: 1310.1830 · arxiv_version: 1310.1830v2 · doi: 10.48550/arxiv.1310.1830 · pith_short_12: QVHNKAJDD3XY · pith_short_16: QVHNKAJDD3XYBSFD · pith_short_8: QVHNKAJD

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/QVHNKAJDD3XYBSFDDADPUQYDGG \
  | 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: 854ed501231eef80c8a31806fa430331a3d88ad449d82b2221ae6fb66c0f6fa7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "039e08cd7de8a1decb2fbb7334dc0f8f284678b401ab59cb422b2bee1ef52773",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-10-07T15:52:29Z",
    "title_canon_sha256": "4833a0d0af5c29596c681a56ede915f5d97db524824a916e89efcb528b123e29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.1830",
    "kind": "arxiv",
    "version": 2
  }
}