Pith Number

pith:3J5WBOKV

pith:2024:3J5WBOKVE6ADEQ3MNQYJQQFUOL

not attested not anchored not stored refs pending

A database of constructions of Hadamard matrices

Dmitrii V. Pasechnik, Matteo Cati

arxiv:2411.18897 v2 · 2024-11-28 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3J5WBOKVE6ADEQ3MNQYJQQFUOL}

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

Multiplier obstructions for Legendre pairs of length 333

Receipt and verification

First computed	2026-07-05T12:01:55.897138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da7b60b955278032436c6c309840b472f35e63bc0e3cca261a539441aa6ffc6c

Aliases

arxiv: 2411.18897 · arxiv_version: 2411.18897v2 · doi: 10.48550/arxiv.2411.18897 · pith_short_12: 3J5WBOKVE6AD · pith_short_16: 3J5WBOKVE6ADEQ3M · pith_short_8: 3J5WBOKV

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/3J5WBOKVE6ADEQ3MNQYJQQFUOL \
  | 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: da7b60b955278032436c6c309840b472f35e63bc0e3cca261a539441aa6ffc6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba510a323014a8e5e03a43acaaeff4e90ad9832fcf94ab80aa4ca4c0310483a7",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2024-11-28T04:12:50Z",
    "title_canon_sha256": "a660f051312917728b156a9db4a14a55be4dd71183fcdc04326b3f2b9b139a69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.18897",
    "kind": "arxiv",
    "version": 2
  }
}