Pith Number

pith:UKGDZ5UU

pith:2024:UKGDZ5UUPXSP6QNRWEM33YOQGC

not attested not anchored not stored refs pending

Detecting Spectral Breaks in Spiked Covariance Models

Debashis Paul, Nina D\"ornemann

arxiv:2404.19176 v1 · 2024-04-30 · 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{UKGDZ5UUPXSP6QNRWEM33YOQGC}

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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

Edgeworth corrections for the spiked eigenvalues of non-Gaussian sample covariance matrices with applications

Receipt and verification

First computed	2026-07-05T08:13:39.387963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a28c3cf6947de4ff41b1b119bde1d03084de913116216f4ce499374618c21794

Aliases

arxiv: 2404.19176 · arxiv_version: 2404.19176v1 · doi: 10.48550/arxiv.2404.19176 · pith_short_12: UKGDZ5UUPXSP · pith_short_16: UKGDZ5UUPXSP6QNR · pith_short_8: UKGDZ5UU

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/UKGDZ5UUPXSP6QNRWEM33YOQGC \
  | 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: a28c3cf6947de4ff41b1b119bde1d03084de913116216f4ce499374618c21794

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcaa4103e78bf0bcbcc07aa5e9a19bf7671662a0bd14e12c0688082b5ff88659",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2024-04-30T01:00:57Z",
    "title_canon_sha256": "6b8ef3e5d7a939427a7fafc060c9babf23102308044caa6b897762dbeffd5384"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.19176",
    "kind": "arxiv",
    "version": 1
  }
}