Pith Number

pith:Q46WA66K

pith:2019:Q46WA66KG6PZXMX57ZUX7Z35XM

not attested not anchored not stored refs pending

Enriques involutions on singular K3 surfaces of small discriminants

Davide Cesare Veniani, Ichiro Shimada

arxiv:1902.00229 v1 · 2019-02-01 · 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{Q46WA66KG6PZXMX57ZUX7Z35XM}

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

15-nodal quartic surfaces. Part II: The automorphism group

Receipt and verification

First computed	2026-07-05T04:04:33.598917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

873d607bca379f9bb2fdfe697fe77dbb1622037d1194301100f6894660bc9183

Aliases

arxiv: 1902.00229 · arxiv_version: 1902.00229v1 · doi: 10.48550/arxiv.1902.00229 · pith_short_12: Q46WA66KG6PZ · pith_short_16: Q46WA66KG6PZXMX5 · pith_short_8: Q46WA66K

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/Q46WA66KG6PZXMX57ZUX7Z35XM \
  | 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: 873d607bca379f9bb2fdfe697fe77dbb1622037d1194301100f6894660bc9183

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0948dabcaf165ce6527d138b8be051b1d416b5e110f60207247dbc2550494efd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-02-01T08:49:39Z",
    "title_canon_sha256": "9ffc103956732a39cbacd4cbb6afa33e935ecfdae568d5654ebc279208bb3bbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00229",
    "kind": "arxiv",
    "version": 1
  }
}