Pith Number

pith:QKCALJLR

pith:1994:QKCALJLREQ2R3R7L73ZZBVNQZF

not attested not anchored not stored refs pending

Toric Q-Gorenstein Singularities

Klaus Altmann

arxiv:alg-geom/9403003 v1 · 1994-03-02 · alg-geom · 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{QKCALJLREQ2R3R7L73ZZBVNQZF}

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.

Cited by

1 paper in Pith

Examples of complete Calabi--Yau metrics on affine smoothings of irregular toric Calabi--Yau cones

Receipt and verification

First computed	2026-07-04T15:08:02.092107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

828405a57124351dc7ebfef390d5b0c9626df5ad66cb5b5b0af71a661c354fc8

Aliases

arxiv: alg-geom/9403003 · arxiv_version: alg-geom/9403003v1 · doi: 10.48550/arxiv.alg-geom/9403003 · pith_short_12: QKCALJLREQ2R · pith_short_16: QKCALJLREQ2R3R7L · pith_short_8: QKCALJLR

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/QKCALJLREQ2R3R7L73ZZBVNQZF \
  | 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: 828405a57124351dc7ebfef390d5b0c9626df5ad66cb5b5b0af71a661c354fc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7eace44fbe8aa0481771e9b9a03be6e3bc56f8d28fed0cf06326d0a0aeb22779",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "",
    "primary_cat": "alg-geom",
    "submitted_at": "1994-03-02T16:47:03Z",
    "title_canon_sha256": "21aa306f9766bd455157d5197ae9a7a545a68bdabeb4c032e93a8e70733fc7cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "alg-geom/9403003",
    "kind": "arxiv",
    "version": 1
  }
}