Pith Number

pith:DX4ERB5A

pith:2010:DX4ERB5AD2CATDBRY5KPCPUCHV

not attested not anchored not stored refs pending

Computing Optimal Experimental Designs via Interior Point Method

Ting Kei Pong, Zhaosong Lu

arxiv:1009.1909 v3 · 2010-09-09 · stat.CO · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DX4ERB5AD2CATDBRY5KPCPUCHV}

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	2026-05-18T03:43:19.036861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1df84887a01e84098c31c754f13e823d7df6d0de7c79fbd37dd07168f5fa652b

Aliases

arxiv: 1009.1909 · arxiv_version: 1009.1909v3 · doi: 10.48550/arxiv.1009.1909 · pith_short_12: DX4ERB5AD2CA · pith_short_16: DX4ERB5AD2CATDBR · pith_short_8: DX4ERB5A

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/DX4ERB5AD2CATDBRY5KPCPUCHV \
  | 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: 1df84887a01e84098c31c754f13e823d7df6d0de7c79fbd37dd07168f5fa652b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ed5778fd70dbd09c54a3f6b66938c108726c7442aca89b77708ed954f34f1ca",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2010-09-09T22:47:16Z",
    "title_canon_sha256": "3104b755e6581e8d7c1636a77d482bfa55421c75c7190c569fa05ef21671c443"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1909",
    "kind": "arxiv",
    "version": 3
  }
}