Pith Number

pith:57VRIGLH

pith:2018:57VRIGLH5EQSWED6HG4J7YGWUU

not attested not anchored not stored refs pending

The classification of $2$-dimensional rigid algebras

Amir Fern\'andez Ouaridi, Antonio Jes\'us Calder\'on, Ivan Kaygorodov

arxiv:1810.01636 v1 · 2018-10-03 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{57VRIGLH5EQSWED6HG4J7YGWUU}

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	2026-05-18T00:04:11.403878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efeb141967e9212b107e39b89fe0d6a53b10ef4386633755c872e434215b4527

Aliases

arxiv: 1810.01636 · arxiv_version: 1810.01636v1 · doi: 10.48550/arxiv.1810.01636 · pith_short_12: 57VRIGLH5EQS · pith_short_16: 57VRIGLH5EQSWED6 · pith_short_8: 57VRIGLH

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/57VRIGLH5EQSWED6HG4J7YGWUU \
  | 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: efeb141967e9212b107e39b89fe0d6a53b10ef4386633755c872e434215b4527

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3e988b8e43bd7395b02966c6afb355685976f0e16a6667159c6658f313d13a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2018-10-03T08:55:02Z",
    "title_canon_sha256": "ad53e429913b78e245a074d44b43e18ac861b5a8b0e6602cff95fe844eca6c69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.01636",
    "kind": "arxiv",
    "version": 1
  }
}