Pith Number

pith:V7BQ32CD

pith:2014:V7BQ32CDEMGFO3S42UJDXBVP3U

not attested not anchored not stored refs pending

A characterization of Burniat surfaces with $K^{2}=4$ and of non nodal type

YongJoo Shin

arxiv:1407.5785 v2 · 2014-07-22 · 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{V7BQ32CDEMGFO3S42UJDXBVP3U}

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	2026-05-18T01:36:58.314640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afc30de843230c576e5cd5123b86afdd15b1985c8108683eaab7eca63ee0ed21

Aliases

arxiv: 1407.5785 · arxiv_version: 1407.5785v2 · doi: 10.48550/arxiv.1407.5785 · pith_short_12: V7BQ32CDEMGF · pith_short_16: V7BQ32CDEMGFO3S4 · pith_short_8: V7BQ32CD

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/V7BQ32CDEMGFO3S42UJDXBVP3U \
  | 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: afc30de843230c576e5cd5123b86afdd15b1985c8108683eaab7eca63ee0ed21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cd65b47f60c50f4ee1a3319fd31f59e54aff28e0fb72161b2fead7e311d846a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-07-22T08:36:32Z",
    "title_canon_sha256": "95088ae0066b116d5dfb3c288c1a55e4c8cd1973e134158e18f23e0f59a4be11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.5785",
    "kind": "arxiv",
    "version": 2
  }
}