Pith Number

pith:ULXAVZ42

pith:2011:ULXAVZ42T67LJSYH4JDTH5VI53

not attested not anchored not stored refs pending

Maximal determinants and saturated D-optimal designs of orders 19 and 37

Judy-anne Osborn, Paul Zimmermann, Richard P. Brent, William Orrick

arxiv:1112.4160 v1 · 2011-12-18 · math.CO · stat.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{ULXAVZ42T67LJSYH4JDTH5VI53}

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.

Cited by

1 paper in Pith

Evaluation-driven Scaling for Scientific Discovery

Receipt and verification

First computed	2026-05-18T02:25:11.373517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2ee0ae79a9fbeb4cb07e24733f6a8eefe596e733d99bf70dd91b166c35ec6ca

Aliases

arxiv: 1112.4160 · arxiv_version: 1112.4160v1 · doi: 10.48550/arxiv.1112.4160 · pith_short_12: ULXAVZ42T67L · pith_short_16: ULXAVZ42T67LJSYH · pith_short_8: ULXAVZ42

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/ULXAVZ42T67LJSYH4JDTH5VI53 \
  | 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: a2ee0ae79a9fbeb4cb07e24733f6a8eefe596e733d99bf70dd91b166c35ec6ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b0ce4e5aff7f11ae0e508da3b65f3752b87352582028b58148be830bbe7463c",
    "cross_cats_sorted": [
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-12-18T14:09:00Z",
    "title_canon_sha256": "6a9d47564cb48ceb723306b34b15a84637806d0f6c6973208ee26e5bb20d1e70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4160",
    "kind": "arxiv",
    "version": 1
  }
}