Pith Number

pith:QHKFB53N

pith:2026:QHKFB53NFNMSWHMLKVUD4DA5CX

not attested not anchored not stored refs pending

The ideal structure of Exel-Pardo algebras and their higher rank analogues

Johannes Christensen, Sergey Neshveyev

arxiv:2605.23728 v1 · 2026-05-22 · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHKFB53NFNMSWHMLKVUD4DA5CX}

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	2026-05-25T02:02:28.897888Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81d450f76d2b592b1d8b55683e0c1d15c4c07ecc1a8a865cd47e72fc101e77ac

Aliases

arxiv: 2605.23728 · arxiv_version: 2605.23728v1 · doi: 10.48550/arxiv.2605.23728 · pith_short_12: QHKFB53NFNMS · pith_short_16: QHKFB53NFNMSWHML · pith_short_8: QHKFB53N

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/QHKFB53NFNMSWHMLKVUD4DA5CX \
  | 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: 81d450f76d2b592b1d8b55683e0c1d15c4c07ecc1a8a865cd47e72fc101e77ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "feacfa0ed9c4b74e4ac4544589afe5931443f92ef9be9e995690eae702cd1b3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2026-05-22T15:07:06Z",
    "title_canon_sha256": "3f339f56bed3333a96bcf06f89a315cf31938eda712947b865e3d681f1966b8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23728",
    "kind": "arxiv",
    "version": 1
  }
}