Pith Number

pith:5DLVWNSA

pith:2021:5DLVWNSARSZOACXLWBZTSTHKOH

not attested not anchored not stored refs pending

Purity and 2-Calabi-Yau categories

Ben Davison

arxiv:2106.07692 v5 · 2021-06-14 · math.AG · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5DLVWNSARSZOACXLWBZTSTHKOH}

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

Calabi-Yau techniques for Namikawa-Weyl groups

Receipt and verification

First computed	2026-07-05T08:02:40.329801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8d75b36408cb2e00aebb073394cea71c30b3c598b76ce99a48f1b0624af426f

Aliases

arxiv: 2106.07692 · arxiv_version: 2106.07692v5 · doi: 10.48550/arxiv.2106.07692 · pith_short_12: 5DLVWNSARSZO · pith_short_16: 5DLVWNSARSZOACXL · pith_short_8: 5DLVWNSA

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/5DLVWNSARSZOACXLWBZTSTHKOH \
  | 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: e8d75b36408cb2e00aebb073394cea71c30b3c598b76ce99a48f1b0624af426f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8cabcb9de6e38aeb954922431fea61aaa163ebf9b35ed91cc8c871ddb30e91d",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2021-06-14T18:16:29Z",
    "title_canon_sha256": "eec84278284871ad55226f75adfddee423a16fa77c79753ea3d1a16fc93fb3a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.07692",
    "kind": "arxiv",
    "version": 5
  }
}