Pith Number

pith:DHR5W7B2

pith:2013:DHR5W7B2HRXSVGZFD2ZBXYHB7X

not attested not anchored not stored refs pending

Computing exact $D$-optimal designs by mixed integer second-order cone programming

Guillaume Sagnol, Radoslav Harman

arxiv:1307.4953 v3 · 2013-07-18 · math.ST · math.OC · 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{DHR5W7B2HRXSVGZFD2ZBXYHB7X}

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	2026-05-18T01:30:08.573633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19e3db7c3a3c6f2a9b251eb21be0e1fdd469f725dd161dda0dfbd9230d8b14e2

Aliases

arxiv: 1307.4953 · arxiv_version: 1307.4953v3 · doi: 10.48550/arxiv.1307.4953 · pith_short_12: DHR5W7B2HRXS · pith_short_16: DHR5W7B2HRXSVGZF · pith_short_8: DHR5W7B2

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/DHR5W7B2HRXSVGZFD2ZBXYHB7X \
  | 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: 19e3db7c3a3c6f2a9b251eb21be0e1fdd469f725dd161dda0dfbd9230d8b14e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0e980854e55a297dd8395a442c7949c93665e6e0314d470b0a74f8e33265c4b",
    "cross_cats_sorted": [
      "math.OC",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-07-18T14:16:16Z",
    "title_canon_sha256": "bf55647570ca5904cfa6958930fd95a8be597411d9cf834a5a88e68f8a6859a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4953",
    "kind": "arxiv",
    "version": 3
  }
}