Pith Number

pith:FL76L7WJ

pith:2026:FL76L7WJ63VRBPJF7LJFQHAZHX

not attested not anchored not stored refs pending

Grouped Orthogonal Arrays from Orthogonal Arrays and Difference Schemes

C. Devon Lin, Chunyan Wang, Guangzhou Chen, Meixin Liu

arxiv:2607.02027 v1 · 2026-07-02 · 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{FL76L7WJ63VRBPJF7LJFQHAZHX}

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	2026-07-03T01:17:37.441270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2affe5fec9f6eb10bd25fad2581c193dd06fa1c5005e5ea6946ad9bda8d977b4

Aliases

arxiv: 2607.02027 · arxiv_version: 2607.02027v1 · doi: 10.48550/arxiv.2607.02027 · pith_short_12: FL76L7WJ63VR · pith_short_16: FL76L7WJ63VRBPJF · pith_short_8: FL76L7WJ

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/FL76L7WJ63VRBPJF7LJFQHAZHX \
  | 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: 2affe5fec9f6eb10bd25fad2581c193dd06fa1c5005e5ea6946ad9bda8d977b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "368085002e912ea38384e7b82781722f850c46fead346d087dac7e84802807f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-07-02T10:55:54Z",
    "title_canon_sha256": "a9b886cdc4a77380a3d850e010c10e34f12fad52a35e78b7bb5b03386e383ac2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.02027",
    "kind": "arxiv",
    "version": 1
  }
}