Pith Number

pith:NUISEPJI

pith:2014:NUISEPJIEHQYGOIOCNJPBYGRE6

not attested not anchored not stored refs pending

Classification of the Z2Z4-linear Hadamard codes and their automorphism groups

Denis Krotov, Merc\`e Villanueva

arxiv:1408.1147 v2 · 2014-08-05 · cs.IT · math.CO · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NUISEPJIEHQYGOIOCNJPBYGRE6}

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	2026-05-17T23:56:43.305161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d11223d2821e183390e1352f0e0d1279138d8d83b1e669fc0beb7170443fe36

Aliases

arxiv: 1408.1147 · arxiv_version: 1408.1147v2 · doi: 10.48550/arxiv.1408.1147 · pith_short_12: NUISEPJIEHQY · pith_short_16: NUISEPJIEHQYGOIO · pith_short_8: NUISEPJI

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/NUISEPJIEHQYGOIOCNJPBYGRE6 \
  | 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: 6d11223d2821e183390e1352f0e0d1279138d8d83b1e669fc0beb7170443fe36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dac942b0b3410c3f714e1719fb05fdc250d12ced9b300cab80dabd7716cc06b1",
    "cross_cats_sorted": [
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-08-05T23:51:20Z",
    "title_canon_sha256": "42fa2a91f8febf68e23fc08b99042465d18e734334ed165dc23ac0465c73d3cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.1147",
    "kind": "arxiv",
    "version": 2
  }
}