Pith Number

pith:D3SWXLVH

pith:2014:D3SWXLVHL5SSWAB7LMMOTHO2RQ

not attested not anchored not stored refs pending

On deformations of Q-Fano threefolds II

Taro Sano

arxiv:1403.0212 v2 · 2014-03-02 · 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{D3SWXLVHL5SSWAB7LMMOTHO2RQ}

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	2026-05-18T02:39:08.866060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ee56baea75f652b003f5b18e99dda8c314a4f3be84e15c62bf4699bd1e5fc0a

Aliases

arxiv: 1403.0212 · arxiv_version: 1403.0212v2 · doi: 10.48550/arxiv.1403.0212 · pith_short_12: D3SWXLVHL5SS · pith_short_16: D3SWXLVHL5SSWAB7 · pith_short_8: D3SWXLVH

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/D3SWXLVHL5SSWAB7LMMOTHO2RQ \
  | 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: 1ee56baea75f652b003f5b18e99dda8c314a4f3be84e15c62bf4699bd1e5fc0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd9b9b93a278026e0f3112bf8c728ebc454ec5f4d51f669856998d93c23c0f9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-03-02T14:24:55Z",
    "title_canon_sha256": "482d9b95381c5faf2d7f98c0c84ec8e68c650f70d3607e93357330006826c214"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.0212",
    "kind": "arxiv",
    "version": 2
  }
}