Pith Number

pith:VVALMVT7

pith:2018:VVALMVT75UYNZLHDJ62S5WKPCM

not attested not anchored not stored refs pending

Bounds for orthogonal arrays with repeated rows

Douglas R. Stinson

arxiv:1812.05145 v1 · 2018-12-12 · 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{VVALMVT75UYNZLHDJ62S5WKPCM}

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	2026-05-17T23:58:24.401807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad40b6567fed30dcace34fb52ed94f130718d51694a1e1f6b800399cec3982d8

Aliases

arxiv: 1812.05145 · arxiv_version: 1812.05145v1 · doi: 10.48550/arxiv.1812.05145 · pith_short_12: VVALMVT75UYN · pith_short_16: VVALMVT75UYNZLHD · pith_short_8: VVALMVT7

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/VVALMVT75UYNZLHDJ62S5WKPCM \
  | 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: ad40b6567fed30dcace34fb52ed94f130718d51694a1e1f6b800399cec3982d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcdde267a89284e848ff6beac22a8e03c5c396e23edc09658628cf24269cb95a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-12-12T20:16:07Z",
    "title_canon_sha256": "f97797f40be53a27dd3c191a4af573b21b65a52cceb20a2cfcd3e7bc906ee877"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05145",
    "kind": "arxiv",
    "version": 1
  }
}