Pith Number

pith:7EH5MJKI

pith:2021:7EH5MJKI4MEZLJMWHSSDQWPCMG

not attested not anchored not stored refs pending

On lattice polarizable cubic fourfolds

Song Yang, Xun Yu

arxiv:2103.09132 v1 · 2021-03-16 · 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{7EH5MJKI4MEZLJMWHSSDQWPCMG}

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

2 papers in Pith

Kuznetsov components and transcendental motives of cubic fourfolds

Kuznetsov components ans transcendental motives of cubic fourfolds

Receipt and verification

First computed	2026-07-05T02:23:35.441634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f90fd62548e30995a5963ca43859e261a8551c11eb8dd919640ea85f0193949f

Aliases

arxiv: 2103.09132 · arxiv_version: 2103.09132v1 · doi: 10.48550/arxiv.2103.09132 · pith_short_12: 7EH5MJKI4MEZ · pith_short_16: 7EH5MJKI4MEZLJMW · pith_short_8: 7EH5MJKI

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/7EH5MJKI4MEZLJMWHSSDQWPCMG \
  | 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: f90fd62548e30995a5963ca43859e261a8551c11eb8dd919640ea85f0193949f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bffd3a3603cb7d8660ee2c04643912f922da2ac4ed706a66cd25944c65d29847",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2021-03-16T15:22:02Z",
    "title_canon_sha256": "1c150f9a3f48fad690bfba6c5b065719c99ed6ff8d1a9c1506ea8ebf9f530cc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.09132",
    "kind": "arxiv",
    "version": 1
  }
}