Pith Number

pith:H2ADARC5

pith:2026:H2ADARC5SFH7VTYVRW5SRULE2E

not attested not anchored not stored refs pending

Odd Kn\"orrer periodicity as a double cover

Calum Crossley

arxiv:2605.27614 v1 · 2026-05-26 · 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{H2ADARC5SFH7VTYVRW5SRULE2E}

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	2026-05-28T01:04:18.324744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e8030445d914ffacf158dbb28d164d1287b4e00f01a5e1106007afa1f45af56

Aliases

arxiv: 2605.27614 · arxiv_version: 2605.27614v1 · doi: 10.48550/arxiv.2605.27614 · pith_short_12: H2ADARC5SFH7 · pith_short_16: H2ADARC5SFH7VTYV · pith_short_8: H2ADARC5

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/H2ADARC5SFH7VTYVRW5SRULE2E \
  | 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: 3e8030445d914ffacf158dbb28d164d1287b4e00f01a5e1106007afa1f45af56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2a62952f28408ec330b7203111ccdc76b1b16254f4346f9e72baeeaed840a9d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-05-26T19:29:18Z",
    "title_canon_sha256": "f9b6e744da86e8d07fcb5f999745619daa4fc9ed7e001a7af3999c3c0034be9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27614",
    "kind": "arxiv",
    "version": 1
  }
}