Pith Number

pith:CAJKBFFV

pith:2019:CAJKBFFVSV5LKGJYYML5WV6SXN

not attested not anchored not stored refs pending

Leonard pairs, spin models, and distance-regular graphs

Kazumasa Nomura, Paul Terwilliger

arxiv:1907.03900 v2 · 2019-07-08 · 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{CAJKBFFVSV5LKGJYYML5WV6SXN}

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	2026-05-17T23:40:23.000892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1012a094b5957ab51938c317db57d2bb67fc8ef3bfd557bb4faf8933e9f027f7

Aliases

arxiv: 1907.03900 · arxiv_version: 1907.03900v2 · doi: 10.48550/arxiv.1907.03900 · pith_short_12: CAJKBFFVSV5L · pith_short_16: CAJKBFFVSV5LKGJY · pith_short_8: CAJKBFFV

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/CAJKBFFVSV5LKGJYYML5WV6SXN \
  | 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: 1012a094b5957ab51938c317db57d2bb67fc8ef3bfd557bb4faf8933e9f027f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "570ee602bc4ce7d81601ee34df76ffd8be319e84d820cd88b553888a6d63bb4b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-07-08T22:47:56Z",
    "title_canon_sha256": "a49b58e5956a57738239e002da4278c0aefe0c2b5a8aca357a328518c51bb086"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.03900",
    "kind": "arxiv",
    "version": 2
  }
}