Pith Number

pith:NCZWQI6O

pith:2026:NCZWQI6OJOJWZACPFCFB3U6EMH

not attested not anchored not stored refs pending

Mens: Nonlinear shrinkage estimation in nonparanormal models for financial applications

(2) Department of Statistics, Bushehr, Data Science, Faculty of Intelligent Systems Engineering, Faculty of Mathematical Sciences, Ferdowsi University of Mashhad, Hamid Karamikabir (1), Iran, Iran), Mashhad, Mohammad Arashi (2) ((1) Department of Statistics, Persian Gulf University

arxiv:2607.19825 v1 · 2026-07-22 · stat.ME · 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{NCZWQI6OJOJWZACPFCFB3U6EMH}

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	2026-07-23T01:24:01.970514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68b36823ce4b936c804f288a1dd3c461dc34959a3bc984241685b177e24e3f7c

Aliases

arxiv: 2607.19825 · arxiv_version: 2607.19825v1 · doi: 10.48550/arxiv.2607.19825 · pith_short_12: NCZWQI6OJOJW · pith_short_16: NCZWQI6OJOJWZACP · pith_short_8: NCZWQI6O

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/NCZWQI6OJOJWZACPFCFB3U6EMH \
  | 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: 68b36823ce4b936c804f288a1dd3c461dc34959a3bc984241685b177e24e3f7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ce100bb627e05b747db8ca8b26bb7774c2071264049dbd41779ce6a7a1f8214",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-07-22T06:58:00Z",
    "title_canon_sha256": "b72b589219e0cb11e7665e877a9815fa02e51a886d6d813336764fb5eb966b38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.19825",
    "kind": "arxiv",
    "version": 1
  }
}