Pith Number

pith:QDB6OP4D

pith:2016:QDB6OP4DH4XAXAIPBYYKAVONEL

not attested not anchored not stored refs pending

Latin squares with no transversals

Ian M. Wanless, Nicholas J. Cavenagh

arxiv:1609.03001 v2 · 2016-09-10 · 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{QDB6OP4DH4XAXAIPBYYKAVONEL}

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	2026-05-18T00:26:30.696158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80c3e73f833f2e0b810f0e30a055cd22e4465f15780abd0b243cd5f39f47e13e

Aliases

arxiv: 1609.03001 · arxiv_version: 1609.03001v2 · doi: 10.48550/arxiv.1609.03001 · pith_short_12: QDB6OP4DH4XA · pith_short_16: QDB6OP4DH4XAXAIP · pith_short_8: QDB6OP4D

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/QDB6OP4DH4XAXAIPBYYKAVONEL \
  | 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: 80c3e73f833f2e0b810f0e30a055cd22e4465f15780abd0b243cd5f39f47e13e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6cb8d01a0d4309f59dda1062c06720555907ee35129fe0928250820480eaded",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-09-10T05:14:25Z",
    "title_canon_sha256": "02e7bc4f66ad44afa0a198eb0d27e70b36a5c76b6829addb8d137df37797077e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.03001",
    "kind": "arxiv",
    "version": 2
  }
}