Pith Number

pith:R72XPBP7

pith:2013:R72XPBP7EGIUPML6ALZTJWM2XI

not attested not anchored not stored refs pending

Sparse PCA through Low-rank Approximations

Alexandros G. Dimakis, Dimitris S. Papailiopoulos, Stavros Korokythakis

arxiv:1303.0551 v2 · 2013-03-03 · stat.ML · cs.IT · cs.LG · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R72XPBP7EGIUPML6ALZTJWM2XI}

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	2026-05-18T02:52:23.683342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ff57785ff219147b17e02f334d99aba39248cfea19cde229e6260bdd29c95a6

Aliases

arxiv: 1303.0551 · arxiv_version: 1303.0551v2 · doi: 10.48550/arxiv.1303.0551 · pith_short_12: R72XPBP7EGIU · pith_short_16: R72XPBP7EGIUPML6 · pith_short_8: R72XPBP7

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/R72XPBP7EGIUPML6ALZTJWM2XI \
  | 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: 8ff57785ff219147b17e02f334d99aba39248cfea19cde229e6260bdd29c95a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d84a5309b28ec018dadc4a6f40954658d11f8bd6b541b8b3cb09da15e3aac2ef",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2013-03-03T19:08:55Z",
    "title_canon_sha256": "0ae21230c76cd1aca76bb1baad6ce59013a7efe845a097e677a011e593c02478"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0551",
    "kind": "arxiv",
    "version": 2
  }
}