Pith Number

pith:2ZKSWM6K

pith:2018:2ZKSWM6KG6O5QZR6G2JX4TTYUE

not attested not anchored not stored refs pending

Cyclotomy, difference sets, sequences with low correlation, strongly regular graphs, and related geometric substructures

Koji Momihara, Qing Xiang, Qi Wang

arxiv:1809.03007 v1 · 2018-09-09 · 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{2ZKSWM6KG6O5QZR6G2JX4TTYUE}

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	2026-05-18T00:06:10.351411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6552b33ca379dd8663e36937e4e78a11206fa51fe25aae7a062137c7e6701d9

Aliases

arxiv: 1809.03007 · arxiv_version: 1809.03007v1 · doi: 10.48550/arxiv.1809.03007 · pith_short_12: 2ZKSWM6KG6O5 · pith_short_16: 2ZKSWM6KG6O5QZR6 · pith_short_8: 2ZKSWM6K

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/2ZKSWM6KG6O5QZR6G2JX4TTYUE \
  | 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: d6552b33ca379dd8663e36937e4e78a11206fa51fe25aae7a062137c7e6701d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05c0d0dd5797fa3280e211ba6415e8919bb839b1845c7ef8c0015993e0a51f35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-09-09T17:09:28Z",
    "title_canon_sha256": "225feacad5cdd6dd3caa4cd113cfe1a3a5f586fd2efd1385035d8564585cb174"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03007",
    "kind": "arxiv",
    "version": 1
  }
}