Pith Number

pith:CN3JLV2A

pith:2009:CN3JLV2ALZBL2RCMYG56WJNFIG

not attested not anchored not stored refs pending

Sparse Principal Components Analysis

Arthur Yu Lu, Iain M Johnstone

arxiv:0901.4392 v1 · 2009-01-28 · 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{CN3JLV2ALZBL2RCMYG56WJNFIG}

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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.

Cited by

1 paper in Pith

Application of Random Matrix Theory in High-Dimensional Statistics

Receipt and verification

First computed	2026-07-04T15:36:58.561017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

137695d7405e42bd444cc1bbeb25a541b3b05f11ae5f89cf9ad68a2807415148

Aliases

arxiv: 0901.4392 · arxiv_version: 0901.4392v1 · doi: 10.48550/arxiv.0901.4392 · pith_short_12: CN3JLV2ALZBL · pith_short_16: CN3JLV2ALZBL2RCM · pith_short_8: CN3JLV2A

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/CN3JLV2ALZBL2RCMYG56WJNFIG \
  | 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: 137695d7405e42bd444cc1bbeb25a541b3b05f11ae5f89cf9ad68a2807415148

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "632d09ae344fb0fd246841a2643bb446774ecf61d3a1f5fba515fc5cd85a52e0",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2009-01-28T02:40:50Z",
    "title_canon_sha256": "01151a3adf41b7dff002c65948bd5a5eaa5492af5ff67c994ae86b18e5769669"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4392",
    "kind": "arxiv",
    "version": 1
  }
}