Pith Number

pith:WCWBOBXC

pith:2014:WCWBOBXCJGGTGWQE57YUOIZQCV

not attested not anchored not stored refs pending

Nonparametric Stein-type Shrinkage Covariance Matrix Estimators in High-Dimensional Settings

Anestis Touloumis

arxiv:1410.4726 v2 · 2014-10-17 · stat.ME

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WCWBOBXCJGGTGWQE57YUOIZQCV}

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	2026-05-18T01:46:13.995053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0ac1706e2498d335a04eff14723301567fed8fa537ddeabd6e5e98003922c60

Aliases

arxiv: 1410.4726 · arxiv_version: 1410.4726v2 · doi: 10.48550/arxiv.1410.4726 · pith_short_12: WCWBOBXCJGGT · pith_short_16: WCWBOBXCJGGTGWQE · pith_short_8: WCWBOBXC

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/WCWBOBXCJGGTGWQE57YUOIZQCV \
  | 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: b0ac1706e2498d335a04eff14723301567fed8fa537ddeabd6e5e98003922c60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86db6f83950abfcf80a8c6f0c37ce59594e1f241ffebe96800ad74e2574ff8d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2014-10-17T14:01:04Z",
    "title_canon_sha256": "b92223af337c007bebda5adf0a1ee68b3e4903992d7a6a4175caf4f28f401797"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.4726",
    "kind": "arxiv",
    "version": 2
  }
}