Pith Number

pith:GOCYAQYF

pith:2025:GOCYAQYFREFCGN4OLSE2WTAFU7

not attested not anchored not stored refs pending

$Q_B$-Optimal Two-Level Designs

Pi-Wen Tsai, Steven G. Gilmour

arxiv:2504.05072 v1 · 2025-04-07 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GOCYAQYFREFCGN4OLSE2WTAFU7}

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	2026-07-05T10:45:33.233931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3385804305890a23378e5c89ab4c05a7dbaec9953714701edbce5b5a571cf2c4

Aliases

arxiv: 2504.05072 · arxiv_version: 2504.05072v1 · doi: 10.48550/arxiv.2504.05072 · pith_short_12: GOCYAQYFREFC · pith_short_16: GOCYAQYFREFCGN4O · pith_short_8: GOCYAQYF

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/GOCYAQYFREFCGN4OLSE2WTAFU7 \
  | 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: 3385804305890a23378e5c89ab4c05a7dbaec9953714701edbce5b5a571cf2c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1202b42d4af6e192c5673285285839319f35664ecf83f8f6e1041f78880c826c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2025-04-07T13:38:39Z",
    "title_canon_sha256": "95b4db0b67f93a5cf3cfae9b3cbcf4cd4f5b4824be5c1ba44c16459a676c23bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.05072",
    "kind": "arxiv",
    "version": 1
  }
}