Pith Number

pith:IXBYEZW2

pith:2021:IXBYEZW24YGSPXBKPKLFSJ3UGL

not attested not anchored not stored refs pending

Parameters for certain locally-regular graphs

Gabriel Verret, Jeroen Schillewaert, Marston Conder

arxiv:2112.00276 v1 · 2021-12-01 · 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{IXBYEZW24YGSPXBKPKLFSJ3UGL}

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	2026-07-05T03:36:44.560425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45c38266dae60d27dc2a7a9659277432ca5d0291cc5ffdb3fd57360498d74c5b

Aliases

arxiv: 2112.00276 · arxiv_version: 2112.00276v1 · doi: 10.48550/arxiv.2112.00276 · pith_short_12: IXBYEZW24YGS · pith_short_16: IXBYEZW24YGSPXBK · pith_short_8: IXBYEZW2

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/IXBYEZW24YGSPXBKPKLFSJ3UGL \
  | 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: 45c38266dae60d27dc2a7a9659277432ca5d0291cc5ffdb3fd57360498d74c5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eebe02f93a963723628f200f5d5c545969c27587dd46f1121528102025bab147",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2021-12-01T04:58:05Z",
    "title_canon_sha256": "5ac54d233274dfd552f030e5127d696a48dbb525ad411a140cd856659f6e9405"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.00276",
    "kind": "arxiv",
    "version": 1
  }
}