Pith Number

pith:O4E4SLTR

pith:2011:O4E4SLTRSBOOLUP7NYDK75AHHH

not attested not anchored not stored refs pending

Consistency of Sparse PCA in High Dimension, Low Sample Size Contexts

Dan Shen, Haipeng Shen, J.S. Marron

arxiv:1104.4289 v1 · 2011-04-21 · math.ST · 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{O4E4SLTRSBOOLUP7NYDK75AHHH}

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	2026-05-18T04:23:44.657375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7709c92e71905ce5d1ff6e06aff40739cd7856ea85d6aef56d0c6bd84227c8b0

Aliases

arxiv: 1104.4289 · arxiv_version: 1104.4289v1 · doi: 10.48550/arxiv.1104.4289 · pith_short_12: O4E4SLTRSBOO · pith_short_16: O4E4SLTRSBOOLUP7 · pith_short_8: O4E4SLTR

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/O4E4SLTRSBOOLUP7NYDK75AHHH \
  | 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: 7709c92e71905ce5d1ff6e06aff40739cd7856ea85d6aef56d0c6bd84227c8b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3b5bc3b59776ac486b5b714bed5c6988c33706188e6279f07567aadd3a9c439",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2011-04-21T15:19:37Z",
    "title_canon_sha256": "ae81871f888e1cc663adddfdcb3c36a375d8139c3119d0bdf2e75010f6c02eb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4289",
    "kind": "arxiv",
    "version": 1
  }
}