Pith Number

pith:T5D3QFJN

pith:2013:T5D3QFJNNGU4PSG4KGE2B2BKX5

not attested not anchored not stored refs pending

Projective normality of model varieties and related results

Andrea Maffei, Jacopo Gandini, Paolo Bravi

arxiv:1304.6352 v2 · 2013-04-23 · math.AG · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T5D3QFJNNGU4PSG4KGE2B2BKX5}

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	2026-05-18T00:12:35.990010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f47b8152d69a9c7c8dc5189a0e82abf548fa48a7dd350922bb189d61ee85c34

Aliases

arxiv: 1304.6352 · arxiv_version: 1304.6352v2 · doi: 10.48550/arxiv.1304.6352 · pith_short_12: T5D3QFJNNGU4 · pith_short_16: T5D3QFJNNGU4PSG4 · pith_short_8: T5D3QFJN

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/T5D3QFJNNGU4PSG4KGE2B2BKX5 \
  | 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: 9f47b8152d69a9c7c8dc5189a0e82abf548fa48a7dd350922bb189d61ee85c34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f25599df9e04a5cb668f2b53d2c03fc04d9722ea5e5ad8f343a695653fa2a3b",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-04-23T17:14:02Z",
    "title_canon_sha256": "232fdbf5a42bed1e80748d4297cb691f9ae1e5711a3d7d35537598a0e8a7eee1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6352",
    "kind": "arxiv",
    "version": 2
  }
}