Pith Number

pith:EEHP6SLF

pith:2011:EEHP6SLFD2ASQCA37XW2ZI7FTW

not attested not anchored not stored refs pending

Efficient estimation of conditional covariance matrices for dimension reduction

Jean-Michel Loubes, Maikol Sol\'is, S\'ebastien Da Veiga

arxiv:1110.3238 v4 · 2011-10-14 · math.ST · stat.ME · stat.TH

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EEHP6SLFD2ASQCA37XW2ZI7FTW}

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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	2026-05-18T02:44:55.403437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

210eff49651e8128081bfdedaca3e59db36750b904dcce2c997b4d5f9effcc17

Aliases

arxiv: 1110.3238 · arxiv_version: 1110.3238v4 · doi: 10.48550/arxiv.1110.3238 · pith_short_12: EEHP6SLFD2AS · pith_short_16: EEHP6SLFD2ASQCA3 · pith_short_8: EEHP6SLF

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/EEHP6SLFD2ASQCA37XW2ZI7FTW \
  | 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: 210eff49651e8128081bfdedaca3e59db36750b904dcce2c997b4d5f9effcc17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eeed1d9b36263f280105e5eb42a798640a7f62a6132b37daaaea9570efbff08b",
    "cross_cats_sorted": [
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2011-10-14T15:12:15Z",
    "title_canon_sha256": "7305a1a05baf5e77ca1dceafbd630d65a1ab94d7540e3ba846afbbfade9f62c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.3238",
    "kind": "arxiv",
    "version": 4
  }
}