Pith Number

pith:CZBOL4NA

pith:2017:CZBOL4NAPVO7CEI4GA4DNV4XEQ

not attested not anchored not stored refs pending

Linked systems of symmetric group divisible designs of type II

Hadi Kharaghani, Sho Suda

arxiv:1710.07888 v2 · 2017-10-22 · 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{CZBOL4NAPVO7CEI4GA4DNV4XEQ}

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	2026-05-17T23:54:16.854973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1642e5f1a07d5df1111c303836d79724294e8acfd2d3e9bd33e195e22c4713e1

Aliases

arxiv: 1710.07888 · arxiv_version: 1710.07888v2 · doi: 10.48550/arxiv.1710.07888 · pith_short_12: CZBOL4NAPVO7 · pith_short_16: CZBOL4NAPVO7CEI4 · pith_short_8: CZBOL4NA

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/CZBOL4NAPVO7CEI4GA4DNV4XEQ \
  | 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: 1642e5f1a07d5df1111c303836d79724294e8acfd2d3e9bd33e195e22c4713e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8904800ce3e212fa341b11b9e06d83b9eed6550810bdfce18fda0ac03a9cd6c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-10-22T04:46:29Z",
    "title_canon_sha256": "070e7d5c56ad0ec987b895948e006eb0f7ec2962a8ba0f45e79d6b950d6e49e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07888",
    "kind": "arxiv",
    "version": 2
  }
}