Pith Number

pith:66FRJWP3

pith:2018:66FRJWP3ZHEAEQ3KOSPNFXMA3P

not attested not anchored not stored refs pending

Multi-part balanced incomplete-block designs

Peter J. Cameron, R. A. Bailey

arxiv:1803.00006 v2 · 2018-02-28 · stat.AP · 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{66FRJWP3ZHEAEQ3KOSPNFXMA3P}

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	2026-05-17T23:44:43.409950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f78b14d9fbc9c802436a749ed2dd80dbd23554f4d4b04d04793fc55d13afd11e

Aliases

arxiv: 1803.00006 · arxiv_version: 1803.00006v2 · doi: 10.48550/arxiv.1803.00006 · pith_short_12: 66FRJWP3ZHEA · pith_short_16: 66FRJWP3ZHEAEQ3K · pith_short_8: 66FRJWP3

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/66FRJWP3ZHEAEQ3KOSPNFXMA3P \
  | 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: f78b14d9fbc9c802436a749ed2dd80dbd23554f4d4b04d04793fc55d13afd11e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d158bea19ed668b28540937320d84b889755896b73f79fff31a4f6db25b10c19",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2018-02-28T17:33:09Z",
    "title_canon_sha256": "f7cc9fb327cb8721db3c01db661f4ad07095997df6d0736d73a6c8d7e89a9b83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00006",
    "kind": "arxiv",
    "version": 2
  }
}