Pith Number

pith:NC3KOQQT

pith:2015:NC3KOQQTY67LCRL4FMC4FYWJJP

not attested not anchored not stored refs pending

On Exel-Pardo algebras

Erik B\'edos, John Quigg, S. Kaliszewski

arxiv:1512.07302 v4 · 2015-12-22 · 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{NC3KOQQTY67LCRL4FMC4FYWJJP}

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	2026-05-18T00:31:36.482401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68b6a74213c7beb1457c2b05c2e2c94bd93c0984d3663a96af554b87892b8353

Aliases

arxiv: 1512.07302 · arxiv_version: 1512.07302v4 · doi: 10.48550/arxiv.1512.07302 · pith_short_12: NC3KOQQTY67L · pith_short_16: NC3KOQQTY67LCRL4 · pith_short_8: NC3KOQQT

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/NC3KOQQTY67LCRL4FMC4FYWJJP \
  | 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: 68b6a74213c7beb1457c2b05c2e2c94bd93c0984d3663a96af554b87892b8353

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "802148659fcf457a09383266273f7d175270ba90f6f443419dd6814b602f0616",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2015-12-22T23:52:42Z",
    "title_canon_sha256": "6ba93cde89f817aab1e6dd86ef4ba082713841f6afaee3f1b3532c8c5699ffee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.07302",
    "kind": "arxiv",
    "version": 4
  }
}