Pith Number

pith:POUAI42M

pith:2018:POUAI42MH36JNS3SNMEHL7QQNV

not attested not anchored not stored refs pending

The classification of Hyperelliptic threefolds

Andreas Demleitner, Fabrizio Catanese

arxiv:1812.09754 v1 · 2018-12-23 · 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{POUAI42MH36JNS3SNMEHL7QQNV}

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	2026-05-17T23:57:26.911952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ba804734c3efc96cb726b0875fe106d6d42effc50d15a7e03115fa0b9a0d4c9

Aliases

arxiv: 1812.09754 · arxiv_version: 1812.09754v1 · doi: 10.48550/arxiv.1812.09754 · pith_short_12: POUAI42MH36J · pith_short_16: POUAI42MH36JNS3S · pith_short_8: POUAI42M

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/POUAI42MH36JNS3SNMEHL7QQNV \
  | 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: 7ba804734c3efc96cb726b0875fe106d6d42effc50d15a7e03115fa0b9a0d4c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc6e16b6e043b88e9be1e1d8c96eeff7aa92ee23ff05d8217c92aa5c692a6bb9",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-12-23T18:51:58Z",
    "title_canon_sha256": "c67a8223a4d1cb9bf62cb6c0f68509ba5fdd7e20a7a2f0505d2d9b99a2a337b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.09754",
    "kind": "arxiv",
    "version": 1
  }
}