Pith Number

pith:FSLSDQVK

pith:2018:FSLSDQVKN3LGUWBDYYOPKGVYUG

not attested not anchored not stored refs pending

Del Pezzo Surfaces, Rigid Line Configurations and Hirzebruch-Kummer Coverings

Fabrizio Catanese, Ingrid Bauer

arxiv:1803.02984 v2 · 2018-03-08 · 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{FSLSDQVKN3LGUWBDYYOPKGVYUG}

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	2026-05-18T00:16:59.042933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c9721c2aa6ed66a5823c61cf51ab8a197dd6511157eca032cc1d1bd61811740

Aliases

arxiv: 1803.02984 · arxiv_version: 1803.02984v2 · doi: 10.48550/arxiv.1803.02984 · pith_short_12: FSLSDQVKN3LG · pith_short_16: FSLSDQVKN3LGUWBD · pith_short_8: FSLSDQVK

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/FSLSDQVKN3LGUWBDYYOPKGVYUG \
  | 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: 2c9721c2aa6ed66a5823c61cf51ab8a197dd6511157eca032cc1d1bd61811740

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea95a5676b60c9984d495d45beafc92b5ff6b005cfc8e8910f37c28a3bd9a4b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-03-08T06:53:34Z",
    "title_canon_sha256": "59b889954b481776340501e05def06a84175a330f4f325ce7cf38f5c81146899"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02984",
    "kind": "arxiv",
    "version": 2
  }
}