Pith Number

pith:MWRC3C5Y

pith:2019:MWRC3C5YBHHVSOURTZAVPLPTIR

not attested not anchored not stored refs pending

An Alternating Manifold Proximal Gradient Method for Sparse PCA and Sparse CCA

Hui Zou, Lingzhou Xue, Shiqian Ma, Shixiang Chen

arxiv:1903.11576 v1 · 2019-03-27 · stat.ML · cs.LG · math.OC · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MWRC3C5YBHHVSOURTZAVPLPTIR}

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	2026-05-17T23:50:02.864358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65a22d8bb809cf593a919e4157adf344658b390b53ae9a2dae89ad71db6fc709

Aliases

arxiv: 1903.11576 · arxiv_version: 1903.11576v1 · doi: 10.48550/arxiv.1903.11576 · pith_short_12: MWRC3C5YBHHV · pith_short_16: MWRC3C5YBHHVSOUR · pith_short_8: MWRC3C5Y

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/MWRC3C5YBHHVSOURTZAVPLPTIR \
  | 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: 65a22d8bb809cf593a919e4157adf344658b390b53ae9a2dae89ad71db6fc709

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fad8a2d623201e59c4dce9232c19815faa7761199d1d6cf4d77c601bd157151",
    "cross_cats_sorted": [
      "cs.LG",
      "math.OC",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-03-27T17:44:00Z",
    "title_canon_sha256": "28c83726328cd1f317b63531ece676eda87cfaf114d654bb69ab0bb1b3520d48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.11576",
    "kind": "arxiv",
    "version": 1
  }
}