Pith Number

pith:54JUNOQ3

pith:2015:54JUNOQ3O64VSHA7PZTQZWJRHB

not attested not anchored not stored refs pending

New infinite families of directed strongly regular graphs via equitable partitions

\v{S}tefan Gy\"urki

arxiv:1504.00161 v1 · 2015-04-01 · 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{54JUNOQ3O64VSHA7PZTQZWJRHB}

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	2026-05-18T02:19:44.403244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef1346ba1b77b9591c1f7e670cd93138594f11735cdc701c0a6d1f178db886af

Aliases

arxiv: 1504.00161 · arxiv_version: 1504.00161v1 · doi: 10.48550/arxiv.1504.00161 · pith_short_12: 54JUNOQ3O64V · pith_short_16: 54JUNOQ3O64VSHA7 · pith_short_8: 54JUNOQ3

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/54JUNOQ3O64VSHA7PZTQZWJRHB \
  | 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: ef1346ba1b77b9591c1f7e670cd93138594f11735cdc701c0a6d1f178db886af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "703dc52859b118c72c8b65d6f454da467a4d59ad36897730a1d6c53dc6a44e98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-04-01T09:32:42Z",
    "title_canon_sha256": "775f34a582989e9fd2d59d0e7b80b245749222f65ec1523a1cf351b73bd65f65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00161",
    "kind": "arxiv",
    "version": 1
  }
}