Pith Number

pith:SHYDVIIJ

pith:2017:SHYDVIIJNC44HJJLMYWXZVUODL

not attested not anchored not stored refs pending

A family of cubic fourfolds with finite-dimensional motive

Robert Laterveer

arxiv:1708.05278 v1 · 2017-08-17 · 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{SHYDVIIJNC44HJJLMYWXZVUODL}

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	2026-05-18T00:37:53.378311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91f03aa10968b9c3a52b662d7cd68e1afbbf86a4943f52ffa57218b7648886a8

Aliases

arxiv: 1708.05278 · arxiv_version: 1708.05278v1 · doi: 10.48550/arxiv.1708.05278 · pith_short_12: SHYDVIIJNC44 · pith_short_16: SHYDVIIJNC44HJJL · pith_short_8: SHYDVIIJ

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/SHYDVIIJNC44HJJLMYWXZVUODL \
  | 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: 91f03aa10968b9c3a52b662d7cd68e1afbbf86a4943f52ffa57218b7648886a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26d4657755cf6867cb8076a23ba694507a807b00607fc1a4d6ccaf1a49953bcf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-08-17T13:59:00Z",
    "title_canon_sha256": "54a45fbf5fb0dc76dc1c8f1a430bf0b27e8116a88f6478cf7f419dec62dabd52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.05278",
    "kind": "arxiv",
    "version": 1
  }
}