Pith Number

pith:IFDMINCV

pith:2019:IFDMINCVQYFUJ75IYP645UBTC3

not attested not anchored not stored refs pending

On the Wilson Monoid of a Pairwise Balanced Design

John Rhodes, Pedro Silva, Stuart W. Margolis

arxiv:1904.03840 v1 · 2019-04-08 · math.CO · math.GR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IFDMINCVQYFUJ75IYP645UBTC3}

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	2026-05-17T23:49:07.975220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4146c43455860b44ffa8c3fdced03316e7542b55a22e558abc7abaae3fc9515b

Aliases

arxiv: 1904.03840 · arxiv_version: 1904.03840v1 · doi: 10.48550/arxiv.1904.03840 · pith_short_12: IFDMINCVQYFU · pith_short_16: IFDMINCVQYFUJ75I · pith_short_8: IFDMINCV

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/IFDMINCVQYFUJ75IYP645UBTC3 \
  | 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: 4146c43455860b44ffa8c3fdced03316e7542b55a22e558abc7abaae3fc9515b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a16949b8141798c21029fd7f1912953fb81314cdd47a79f4ed8cad5690bb9bf",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-04-08T05:00:57Z",
    "title_canon_sha256": "556a49cf55d8d1d095e7f128f79ef5efde6547146816184e5f68d2e4e5ea3b6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03840",
    "kind": "arxiv",
    "version": 1
  }
}