Pith Number

pith:UPQOT46J

pith:2026:UPQOT46JM7DDJVLOWQYOJLHOWE

not attested not anchored not stored refs pending

An Explication of Optimal Equidistant Codes

Douglas R. Stinson

arxiv:2606.29022 v1 · 2026-06-27 · 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{UPQOT46JM7DDJVLOWQYOJLHOWE}

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	2026-06-30T01:17:49.751513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3e0e9f3c967c634d56eb430e4aceeb110bd4383509fc076ddb1ff88a718a858

Aliases

arxiv: 2606.29022 · arxiv_version: 2606.29022v1 · doi: 10.48550/arxiv.2606.29022 · pith_short_12: UPQOT46JM7DD · pith_short_16: UPQOT46JM7DDJVLO · pith_short_8: UPQOT46J

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/UPQOT46JM7DDJVLOWQYOJLHOWE \
  | 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: a3e0e9f3c967c634d56eb430e4aceeb110bd4383509fc076ddb1ff88a718a858

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d1a462c5d62a684cab10d762fde68d38ad6f9d751ac4d44db805ce2582c9c78",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-06-27T17:40:11Z",
    "title_canon_sha256": "7e258bd00303fc1bafdfb0871d25409cc1144e2b1477ac61b89a02434adb110a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.29022",
    "kind": "arxiv",
    "version": 1
  }
}