Pith Number

pith:F3RJPFNS

pith:2009:F3RJPFNSJKLQID5ZOGCDGYTUC2

not attested not anchored not stored refs pending

D-optimal designs via a cocktail algorithm

Yaming Yu

arxiv:0911.0108 v3 · 2009-10-31 · stat.CO · 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{F3RJPFNSJKLQID5ZOGCDGYTUC2}

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	2026-05-18T04:15:36.933011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ee29795b24a97040fb971843362741697abd0148ed15e79250268b659e589d6

Aliases

arxiv: 0911.0108 · arxiv_version: 0911.0108v3 · doi: 10.48550/arxiv.0911.0108 · pith_short_12: F3RJPFNSJKLQ · pith_short_16: F3RJPFNSJKLQID5Z · pith_short_8: F3RJPFNS

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/F3RJPFNSJKLQID5ZOGCDGYTUC2 \
  | 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: 2ee29795b24a97040fb971843362741697abd0148ed15e79250268b659e589d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f26ef7cff7d92993d4341b81d6781ac6a64973d7b0cc459e3e2a0480cbfe128d",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2009-10-31T20:32:12Z",
    "title_canon_sha256": "a6b74fa8a9d13d94e872643daf02658f3417943d601ea282b967fe29c5d5f651"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0108",
    "kind": "arxiv",
    "version": 3
  }
}