Pith Number

pith:FJ6RQNWZ

pith:2022:FJ6RQNWZBHHVHYLL3ZQRIZAICU

not attested not anchored not stored refs pending

Categorical aspects of the Koll\'ar--Shepherd-Barron correspondence

Giancarlo Urz\'ua, Jenia Tevelev

arxiv:2204.13225 v3 · 2022-04-27 · 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{FJ6RQNWZBHHVHYLL3ZQRIZAICU}

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

2 papers in Pith

Inducing t-structures on semiorthogonal components

Geometric helices on del Pezzo surfaces from tilting

Receipt and verification

First computed	2026-07-05T05:19:34.888254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a7d1836d909cf53e16bde611464081507a71de072b9467ff96b6182c76afde5

Aliases

arxiv: 2204.13225 · arxiv_version: 2204.13225v3 · doi: 10.48550/arxiv.2204.13225 · pith_short_12: FJ6RQNWZBHHV · pith_short_16: FJ6RQNWZBHHVHYLL · pith_short_8: FJ6RQNWZ

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/FJ6RQNWZBHHVHYLL3ZQRIZAICU \
  | 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: 2a7d1836d909cf53e16bde611464081507a71de072b9467ff96b6182c76afde5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "155874d4ba1566e2a3bde45ca620c02ba185b7d1a95f9c9dba69c47521c274df",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2022-04-27T23:02:38Z",
    "title_canon_sha256": "755002fa83d62f346e5dca7b63a3e6830b0ca09f36417417a8e6c95dd92486ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.13225",
    "kind": "arxiv",
    "version": 3
  }
}