Pith Number

pith:PUSQMB72

pith:2014:PUSQMB72I3NFA5SVCOQETZCNXD

not attested not anchored not stored refs pending

A Walsh-Fourier approach to the circulant Hadamard conjecture

M. Matolcsi

arxiv:1409.7198 v1 · 2014-09-25 · 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{PUSQMB72I3NFA5SVCOQETZCNXD}

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	2026-05-18T02:41:58.947887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d250607fa46da50765513a049e44db8cb5bf3cced751d25ea91b549a2010ff8

Aliases

arxiv: 1409.7198 · arxiv_version: 1409.7198v1 · doi: 10.48550/arxiv.1409.7198 · pith_short_12: PUSQMB72I3NF · pith_short_16: PUSQMB72I3NFA5SV · pith_short_8: PUSQMB72

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/PUSQMB72I3NFA5SVCOQETZCNXD \
  | 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: 7d250607fa46da50765513a049e44db8cb5bf3cced751d25ea91b549a2010ff8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebf16ed2140b63b3441225c900d26d9d3b55e08f5dcc968c0bdf1861005b6b88",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-09-25T10:00:34Z",
    "title_canon_sha256": "09a04e88c72a3f5cb4804ede4dbda4e21f6951cc19a6b6f4a1e63090bba58311"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7198",
    "kind": "arxiv",
    "version": 1
  }
}