Pith Number

pith:P7O5R7WM

pith:2022:P7O5R7WMXEFBIWKAR2IG557RY2

not attested not anchored not stored refs pending

Covariance Estimation: Optimal Dimension-free Guarantees for Adversarial Corruption and Heavy Tails

Nikita Zhivotovskiy, Pedro Abdalla

arxiv:2205.08494 v3 · 2022-05-17 · math.ST · cs.DS · math.PR · 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{P7O5R7WMXEFBIWKAR2IG557RY2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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

2 papers in Pith

The Decision Geometry of Covariance Estimation for the Global Minimum-Variance Portfolio under Heavy Tails

Concentration Inequalities for Sample Cross-Covariances

Receipt and verification

First computed	2026-07-05T06:33:01.891217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fddd8feccb90a1459408e906ef7f1c6857a43830c89e7a5e2356cfbe6ccd332

Aliases

arxiv: 2205.08494 · arxiv_version: 2205.08494v3 · doi: 10.48550/arxiv.2205.08494 · pith_short_12: P7O5R7WMXEFB · pith_short_16: P7O5R7WMXEFBIWKA · pith_short_8: P7O5R7WM

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/P7O5R7WMXEFBIWKAR2IG557RY2 \
  | 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: 7fddd8feccb90a1459408e906ef7f1c6857a43830c89e7a5e2356cfbe6ccd332

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8d73e310eede28eb54b1f69e07b599e5151891d40e4ac5e866a5c094ec57076",
    "cross_cats_sorted": [
      "cs.DS",
      "math.PR",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2022-05-17T17:08:45Z",
    "title_canon_sha256": "b70c30d0210e38b4f81f56ffb0ce4cfdfc30cae43e3fcb104737936e0feaa673"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.08494",
    "kind": "arxiv",
    "version": 3
  }
}