Pith Number

pith:OQRYRQMG

pith:2011:OQRYRQMGS5Z3M7XRCUDJWY4H6B

not attested not anchored not stored refs pending

Covariance estimation for distributions with $2+\varepsilon$ moments

Nikhil Srivastava, Roman Vershynin

arxiv:1106.2775 v4 · 2011-06-14 · math.PR · 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{OQRYRQMGS5Z3M7XRCUDJWY4H6B}

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.

Receipt and verification

First computed	2026-05-18T03:11:33.843392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

742388c1869773b67ef115069b6387f0565e972165bd84c6b385c43297737dac

Aliases

arxiv: 1106.2775 · arxiv_version: 1106.2775v4 · doi: 10.48550/arxiv.1106.2775 · pith_short_12: OQRYRQMGS5Z3 · pith_short_16: OQRYRQMGS5Z3M7XR · pith_short_8: OQRYRQMG

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/OQRYRQMGS5Z3M7XRCUDJWY4H6B \
  | 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: 742388c1869773b67ef115069b6387f0565e972165bd84c6b385c43297737dac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ec5c9075bb864b82c328f6143372edd3180b9ba2ff7ccc837662c53f79efacf",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2011-06-14T18:14:35Z",
    "title_canon_sha256": "de8e67140c1ec76414567b859b77185cd4f298f5b1f28918742cc9278d17bedb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.2775",
    "kind": "arxiv",
    "version": 4
  }
}