Pith Number

pith:4UXBU3NL

pith:2018:4UXBU3NLDN3LAEUFQPPA3WVDCI

not attested not anchored not stored refs pending

Hyperelliptic Threefolds with group $D_4$, the Dihedral group of order 8

Andreas Demleitner (Universitaet Bayreuth), Fabrizio Catanese

arxiv:1805.01835 v1 · 2018-05-04 · math.AG · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4UXBU3NLDN3LAEUFQPPA3WVDCI}

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	2026-05-18T00:16:46.519232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e52e1a6dab1b76b0128583de0ddaa312191c99aa3dece487ae9ede87a45288f4

Aliases

arxiv: 1805.01835 · arxiv_version: 1805.01835v1 · doi: 10.48550/arxiv.1805.01835 · pith_short_12: 4UXBU3NLDN3L · pith_short_16: 4UXBU3NLDN3LAEUF · pith_short_8: 4UXBU3NL

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/4UXBU3NLDN3LAEUFQPPA3WVDCI \
  | 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: e52e1a6dab1b76b0128583de0ddaa312191c99aa3dece487ae9ede87a45288f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2170fbeaf98faeb74924725e298dd8e96127a98f1a529ef79498a2a0992f8888",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-05-04T16:05:47Z",
    "title_canon_sha256": "2dfe8eb6c13dc2830bd54a9fc50a74271d833ddb9b84eb6c5973d95b0358e557"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01835",
    "kind": "arxiv",
    "version": 1
  }
}