Pith Number

pith:YOABBEE4

pith:2011:YOABBEE466LYN5LM2XACZDTERH

not attested not anchored not stored refs pending

Fixed block configuration group divisible designs with block size six

Melanie Laffin, Melissa Keranen

arxiv:1105.1470 v1 · 2011-05-07 · 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{YOABBEE466LYN5LM2XACZDTERH}

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	2026-05-18T04:22:39.373985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c38010909cf79786f56cd5c02c8e6489e60d72cbf37d2490c018b0019924c407

Aliases

arxiv: 1105.1470 · arxiv_version: 1105.1470v1 · doi: 10.48550/arxiv.1105.1470 · pith_short_12: YOABBEE466LY · pith_short_16: YOABBEE466LYN5LM · pith_short_8: YOABBEE4

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/YOABBEE466LYN5LM2XACZDTERH \
  | 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: c38010909cf79786f56cd5c02c8e6489e60d72cbf37d2490c018b0019924c407

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82a94e5991d2989c5461b2cdf7f0c37cc7a6c70f71d4bff005c57f22d810a202",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-05-07T19:22:24Z",
    "title_canon_sha256": "0e6ecd4e27d3454189b5d896f822f661cde598a94ec43b87b841e7cfd2c7b052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1470",
    "kind": "arxiv",
    "version": 1
  }
}