Pith Number

pith:M27TADBF

pith:2017:M27TADBFD47IZRURGSKAA5OPDQ

not attested not anchored not stored refs pending

Construction of symmetric Hadamard matrices of order $4v$ for $v=47,73,113$

D. A. Karbovskiy, D. Z. Djokovic, N. A. Balonin

arxiv:1710.03037 v1 · 2017-10-09 · 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{M27TADBFD47IZRURGSKAA5OPDQ}

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	2026-05-18T00:22:15.965524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66bf300c251f3e8cc69134940075cf1c3fe3233d0389da9b174d083faca15196

Aliases

arxiv: 1710.03037 · arxiv_version: 1710.03037v1 · doi: 10.48550/arxiv.1710.03037 · pith_short_12: M27TADBFD47I · pith_short_16: M27TADBFD47IZRUR · pith_short_8: M27TADBF

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/M27TADBFD47IZRURGSKAA5OPDQ \
  | 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: 66bf300c251f3e8cc69134940075cf1c3fe3233d0389da9b174d083faca15196

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c20938287628988e7b1bf23ce2d9ed0ff6957577dcd4dac011f0e0d48656476",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-10-09T11:35:33Z",
    "title_canon_sha256": "204fcac08e6eb2daa8f0c3793c54a11718e8c12e54e0513a7fefd4c72a7eb51c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.03037",
    "kind": "arxiv",
    "version": 1
  }
}