Pith Number

pith:NNCPRWX3

pith:2015:NNCPRWX3XB42DKYRIC4KWNMVSF

not attested not anchored not stored refs pending

Nonrational del Pezzo fibrations admitting an action of the Klein simple group

Takuzo Okada

arxiv:1506.05564 v1 · 2015-06-18 · 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{NNCPRWX3XB42DKYRIC4KWNMVSF}

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	2026-05-18T01:44:10.353590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b44f8dafbb879a1ab1140b8ab35959164d0da2ac04b25f69d7f32d32913a41d

Aliases

arxiv: 1506.05564 · arxiv_version: 1506.05564v1 · doi: 10.48550/arxiv.1506.05564 · pith_short_12: NNCPRWX3XB42 · pith_short_16: NNCPRWX3XB42DKYR · pith_short_8: NNCPRWX3

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/NNCPRWX3XB42DKYRIC4KWNMVSF \
  | 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: 6b44f8dafbb879a1ab1140b8ab35959164d0da2ac04b25f69d7f32d32913a41d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4d63945134f505c53341c690df5efa8bf86f9de64a5335befb06cb276078098",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-06-18T07:25:21Z",
    "title_canon_sha256": "7de7555952631ef3d2269b04c83b8682dfa98b9acd6e099fa719a0b18602d1ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.05564",
    "kind": "arxiv",
    "version": 1
  }
}