Pith Number

pith:QKKKX2H5

pith:2015:QKKKX2H57NCMHHCHPDLJNRZZLE

not attested not anchored not stored refs pending

Leonard pairs having zero-diagonal TD-TD form

Kazumasa Nomura

arxiv:1503.05262 v1 · 2015-03-18 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QKKKX2H57NCMHHCHPDLJNRZZLE}

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	2026-05-18T02:21:50.942492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8294abe8fdfb44c39c4778d696c739591d9acdf919dfd8c47aea47bf879f9009

Aliases

arxiv: 1503.05262 · arxiv_version: 1503.05262v1 · doi: 10.48550/arxiv.1503.05262 · pith_short_12: QKKKX2H57NCM · pith_short_16: QKKKX2H57NCMHHCH · pith_short_8: QKKKX2H5

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/QKKKX2H57NCMHHCHPDLJNRZZLE \
  | 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: 8294abe8fdfb44c39c4778d696c739591d9acdf919dfd8c47aea47bf879f9009

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51916f8b7daef320940893a98bd613e0a77097c1cffcaf53b0a34948ae08620a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2015-03-18T01:34:46Z",
    "title_canon_sha256": "bf001b4fc1d8838c13072d92f901929e44ce16b29b1fc92938dbb8c60c789b44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.05262",
    "kind": "arxiv",
    "version": 1
  }
}