Pith Number

pith:HY7J27LA

pith:2023:HY7J27LAGJO6NI3EA3QYSH67K4

not attested not anchored not stored refs pending

Hadamard matrices: skew of orders 276, 292 and symmetric 372

Dragomir \v{Z}. Djokovi\'c

arxiv:2301.02751 v3 · 2023-01-07 · 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{HY7J27LAGJO6NI3EA3QYSH67K4}

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

A database of constructions of Hadamard matrices

Receipt and verification

First computed	2026-07-05T09:39:50.143687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e3e9d7d60325de6a36406e1891fdf5733b6c3d31fb6fbb0f916b736e281402f

Aliases

arxiv: 2301.02751 · arxiv_version: 2301.02751v3 · doi: 10.48550/arxiv.2301.02751 · pith_short_12: HY7J27LAGJO6 · pith_short_16: HY7J27LAGJO6NI3E · pith_short_8: HY7J27LA

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/HY7J27LAGJO6NI3EA3QYSH67K4 \
  | 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: 3e3e9d7d60325de6a36406e1891fdf5733b6c3d31fb6fbb0f916b736e281402f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d71f3c6ea5f39296618aeec1e3d6598c88b80718e522110c80c3463b679b2c9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2023-01-07T00:11:59Z",
    "title_canon_sha256": "a64b1345bcbde6b3cf83317a6f12ba33dbf64a50425a98597bebdc3e042b276b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.02751",
    "kind": "arxiv",
    "version": 3
  }
}