Pith Number

pith:Y742DNG7

pith:2018:Y742DNG7GYBUWKSRB3ZP6Z3TLH

not attested not anchored not stored refs pending

Birational superrigidity and K-stability of Fano complete intersections of index one (with an appendix written jointly with Charlie Stibitz)

Ziquan Zhuang

arxiv:1802.08389 v2 · 2018-02-23 · math.AG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y742DNG7GYBUWKSRB3ZP6Z3TLH}

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	2026-07-05T02:16:36.854846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7f9a1b4df36034b2a510ef2ff677359e68e8e87061fd5b4649bdb9431ab8b85

Aliases

arxiv: 1802.08389 · arxiv_version: 1802.08389v2 · doi: 10.48550/arxiv.1802.08389 · pith_short_12: Y742DNG7GYBU · pith_short_16: Y742DNG7GYBUWKSR · pith_short_8: Y742DNG7

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/Y742DNG7GYBUWKSRB3ZP6Z3TLH \
  | 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: c7f9a1b4df36034b2a510ef2ff677359e68e8e87061fd5b4649bdb9431ab8b85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e08eb514096d4828d6c142b77a7a64f5d51e7b22929c784e02c1d98f53c3fd67",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-02-23T05:08:51Z",
    "title_canon_sha256": "7eed89597738e305ae96fd1c6c90073f6c4c54eeff5e72b210a6e4135b51cc66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08389",
    "kind": "arxiv",
    "version": 2
  }
}