Pith Number

pith:PTCUUZJV

pith:2015:PTCUUZJVBEOF32JLOO7IQDDYEY

not attested not anchored not stored refs pending

D-optimal Designs with Ordered Categorical Data

Abhyuday Mandal, Jie Yang, Liping Tong

arxiv:1502.05990 v5 · 2015-02-20 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PTCUUZJVBEOF32JLOO7IQDDYEY}

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	2026-05-18T00:31:05.740988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cc54a6535091c5de92b73be880c78263803d774e2466e226d7f78c1195ac8be

Aliases

arxiv: 1502.05990 · arxiv_version: 1502.05990v5 · doi: 10.48550/arxiv.1502.05990 · pith_short_12: PTCUUZJVBEOF · pith_short_16: PTCUUZJVBEOF32JL · pith_short_8: PTCUUZJV

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/PTCUUZJVBEOF32JLOO7IQDDYEY \
  | 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: 7cc54a6535091c5de92b73be880c78263803d774e2466e226d7f78c1195ac8be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "583aa10b9fda046019bce80bc928fda0f21a5c4d74e9fc7aedb87ab6f3afad86",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2015-02-20T20:51:49Z",
    "title_canon_sha256": "b5f6a85000168db0a893057aee2bb512a02b53ee21af231881c00612d979752a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05990",
    "kind": "arxiv",
    "version": 5
  }
}