Pith Number

pith:DS24RYTT

pith:2026:DS24RYTT3HIO24MMWDLOIQFHB4

not attested not anchored not stored refs pending

A Robust Optimization Approach to Sparse Principal Component Analysis

Andr\'e M. H. Teixeira, Ant\^onio H. Ribeiro, Dave Zachariah, David V\"avinggren, Francis Bach

arxiv:2606.03553 v1 · 2026-06-02 · stat.ML · cs.LG · 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{DS24RYTT3HIO24MMWDLOIQFHB4}

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	2026-06-03T01:06:00.677942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cb5c8e273d9d0ed718cb0d6e440a70f3504457a43cb7b65a69b3d50f8204b4e

Aliases

arxiv: 2606.03553 · arxiv_version: 2606.03553v1 · doi: 10.48550/arxiv.2606.03553 · pith_short_12: DS24RYTT3HIO · pith_short_16: DS24RYTT3HIO24MM · pith_short_8: DS24RYTT

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/DS24RYTT3HIO24MMWDLOIQFHB4 \
  | 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: 1cb5c8e273d9d0ed718cb0d6e440a70f3504457a43cb7b65a69b3d50f8204b4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "879f2f96dadf32650526e99ceebbb8f2b9db265e3294bc5207ef5a80586ee640",
    "cross_cats_sorted": [
      "cs.LG",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-06-02T12:14:12Z",
    "title_canon_sha256": "f13e91b7e9ce4d111eef8a091d35de22baab153054e3c7f3b17463060bd93892"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.03553",
    "kind": "arxiv",
    "version": 1
  }
}