Pith Number

pith:4JNQCVKC

pith:2024:4JNQCVKCG2MBK5KBIL47CCSKE6

not attested not anchored not stored refs pending

Eigenvector overlaps in large sample covariance matrices and nonlinear shrinkage estimators

Guangming Pan, Zeqin Lin

arxiv:2404.18173 v2 · 2024-04-28 · 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{4JNQCVKCG2MBK5KBIL47CCSKE6}

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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

Spectrally Robust Covariance Shrinkage for Hotelling's $T^2$ in High Dimensions

Receipt and verification

First computed	2026-07-05T08:46:24.583297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e25b015542369815754142f9f10a4a27b9d7d593a29411723147ddd8f98e672f

Aliases

arxiv: 2404.18173 · arxiv_version: 2404.18173v2 · doi: 10.48550/arxiv.2404.18173 · pith_short_12: 4JNQCVKCG2MB · pith_short_16: 4JNQCVKCG2MBK5KB · pith_short_8: 4JNQCVKC

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/4JNQCVKCG2MBK5KBIL47CCSKE6 \
  | 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: e25b015542369815754142f9f10a4a27b9d7d593a29411723147ddd8f98e672f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4f2e8bc893b8c1469d958ba85cbd06d63618ec99d561e59756cced9223d5850",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2024-04-28T13:07:52Z",
    "title_canon_sha256": "021ee9b3b19ba715923cd1fb6d78f19338a47e9b9dd6f59195a41a300332cf9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.18173",
    "kind": "arxiv",
    "version": 2
  }
}