Pith Number

pith:S5FHAPJW

pith:2014:S5FHAPJWUNZ3M6VQUEFJAITD57

not attested not anchored not stored refs pending

Statistical and computational trade-offs in estimation of sparse principal components

Quentin Berthet, Richard J. Samworth, Tengyao Wang

arxiv:1408.5369 v2 · 2014-08-22 · math.ST · stat.ML · stat.TH

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S5FHAPJWUNZ3M6VQUEFJAITD57}

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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	2026-05-18T01:03:44.616334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

974a703d36a373b67ab0a10a902263efc948f9aa7691d1f3c695e0e33e1dc999

Aliases

arxiv: 1408.5369 · arxiv_version: 1408.5369v2 · doi: 10.48550/arxiv.1408.5369 · pith_short_12: S5FHAPJWUNZ3 · pith_short_16: S5FHAPJWUNZ3M6VQ · pith_short_8: S5FHAPJW

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/S5FHAPJWUNZ3M6VQUEFJAITD57 \
  | 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: 974a703d36a373b67ab0a10a902263efc948f9aa7691d1f3c695e0e33e1dc999

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aa93e02a34ce405f087a452e548601249fc13d3ee1cb87b8d48c997bcba327f",
    "cross_cats_sorted": [
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2014-08-22T17:42:35Z",
    "title_canon_sha256": "1568a9b77add4a253d9177a71377a473cf8f8344492d9c111e01439e4ec18df6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5369",
    "kind": "arxiv",
    "version": 2
  }
}