Pith Number

pith:NOY7BLLC

pith:2013:NOY7BLLCLYZTDYQADEJAX27KHS

not attested not anchored not stored refs pending

Weighing matrices and spherical codes

Hiroshi Nozaki, Sho Suda

arxiv:1309.3892 v2 · 2013-09-16 · 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{NOY7BLLCLYZTDYQADEJAX27KHS}

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	2026-05-18T02:55:03.947086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bb1f0ad625e3331e20019120bebea3c965fed75251b098e3cfa6906386fc210

Aliases

arxiv: 1309.3892 · arxiv_version: 1309.3892v2 · doi: 10.48550/arxiv.1309.3892 · pith_short_12: NOY7BLLCLYZT · pith_short_16: NOY7BLLCLYZTDYQA · pith_short_8: NOY7BLLC

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/NOY7BLLCLYZTDYQADEJAX27KHS \
  | 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: 6bb1f0ad625e3331e20019120bebea3c965fed75251b098e3cfa6906386fc210

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f0c41fc8aa6a11c7842c1c4967467a3cc322d6d5f4b27c07686415c4b1b1f64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-09-16T10:44:33Z",
    "title_canon_sha256": "9e79710f2ba0e08410af267fd79be806ce596282509adc2c306bb526f25d42f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3892",
    "kind": "arxiv",
    "version": 2
  }
}