Pith Number

pith:T55COIPH

pith:2010:T55COIPHPQ5ZYTOLFQ2733SU7G

not attested not anchored not stored refs pending

Generalized covering designs and clique coverings

Andrea C. Burgess, Karen Meagher, Michael S. Cavers, Robert F. Bailey

arxiv:1011.3804 v2 · 2010-11-16 · 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{T55COIPHPQ5ZYTOLFQ2733SU7G}

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	2026-05-18T02:23:36.468872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f7a2721e77c3b9c4dcb2c35fdee54f98791b6f68b83de9227e933e916324977

Aliases

arxiv: 1011.3804 · arxiv_version: 1011.3804v2 · doi: 10.48550/arxiv.1011.3804 · pith_short_12: T55COIPHPQ5Z · pith_short_16: T55COIPHPQ5ZYTOL · pith_short_8: T55COIPH

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/T55COIPHPQ5ZYTOLFQ2733SU7G \
  | 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: 9f7a2721e77c3b9c4dcb2c35fdee54f98791b6f68b83de9227e933e916324977

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01755feab0c15cfbb4de9c40f2220a78f2074403c798e43d86fd175feded2a35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-11-16T20:05:57Z",
    "title_canon_sha256": "48ee53e1f2c1abbe4858da4330effb0581703940efda2b87db15d1bc90e30bf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.3804",
    "kind": "arxiv",
    "version": 2
  }
}