Pith Number

pith:SEGPX2PA

pith:2011:SEGPX2PARBXOIQGXAOTZO5D3ID

not attested not anchored not stored refs pending

The special McKay correspondence and exceptional collection

Akira Ishii, Kazushi Ueda

arxiv:1104.2381 v2 · 2011-04-13 · 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{SEGPX2PARBXOIQGXAOTZO5D3ID}

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	2026-05-18T03:12:48.736779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

910cfbe9e0886ee440d703a797747b40c82a3b745e21a259f2067279cf37c6d2

Aliases

arxiv: 1104.2381 · arxiv_version: 1104.2381v2 · doi: 10.48550/arxiv.1104.2381 · pith_short_12: SEGPX2PARBXO · pith_short_16: SEGPX2PARBXOIQGX · pith_short_8: SEGPX2PA

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/SEGPX2PARBXOIQGXAOTZO5D3ID \
  | 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: 910cfbe9e0886ee440d703a797747b40c82a3b745e21a259f2067279cf37c6d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2dcdf906cbc6fd00b2ac9a8d93b0721146348033b08ba70f4ac5b05e763c8a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-04-13T05:22:44Z",
    "title_canon_sha256": "16750e06673b7671c952e8f805239e6bb953b0b1badaa331fa2d4c5c86e0b233"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2381",
    "kind": "arxiv",
    "version": 2
  }
}