Pith Number

pith:NVA22N4J

pith:2014:NVA22N4JEDAMRHX7QQLND2LGOI

not attested not anchored not stored refs pending

A three-factor product construction for mutually orthogonal latin squares

Alan C.H. Ling, Peter J. Dukes

arxiv:1401.1466 v1 · 2014-01-07 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NVA22N4JEDAMRHX7QQLND2LGOI}

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	2026-05-18T03:03:08.329730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d41ad378920c0c89eff8416d1e966723ef20e0f412073ce1cda9200b315f951

Aliases

arxiv: 1401.1466 · arxiv_version: 1401.1466v1 · doi: 10.48550/arxiv.1401.1466 · pith_short_12: NVA22N4JEDAM · pith_short_16: NVA22N4JEDAMRHX7 · pith_short_8: NVA22N4J

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/NVA22N4JEDAMRHX7QQLND2LGOI \
  | 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: 6d41ad378920c0c89eff8416d1e966723ef20e0f412073ce1cda9200b315f951

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "321635201337e750871fca91b44738de58702f1ae6d3cd8461026e483576eee6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-01-07T18:29:07Z",
    "title_canon_sha256": "4d0413a41a0259b379ebb912fed74456cad3bbec65d5f15ee1e4fca3f54fe224"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1466",
    "kind": "arxiv",
    "version": 1
  }
}