Pith Number

pith:SXBDWLVW

pith:2018:SXBDWLVWCHYTOQJFEGHB4FWVZZ

not attested not anchored not stored refs pending

Optimal shrinkage covariance matrix estimation under random sampling from elliptical distributions

Elias Raninen, Esa Ollila

arxiv:1808.10188 v1 · 2018-08-30 · 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{SXBDWLVWCHYTOQJFEGHB4FWVZZ}

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	2026-05-17T23:45:36.938420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95c23b2eb611f1374125218e1e16d5ce7ffac58175e8e628c85f262378b66bd4

Aliases

arxiv: 1808.10188 · arxiv_version: 1808.10188v1 · doi: 10.48550/arxiv.1808.10188 · pith_short_12: SXBDWLVWCHYT · pith_short_16: SXBDWLVWCHYTOQJF · pith_short_8: SXBDWLVW

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/SXBDWLVWCHYTOQJFEGHB4FWVZZ \
  | 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: 95c23b2eb611f1374125218e1e16d5ce7ffac58175e8e628c85f262378b66bd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b944269eebf307692ba1553a7829ab842237c7f48347c2e73ca80a522143daa7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-08-30T08:57:48Z",
    "title_canon_sha256": "b55613814252b6448f8cc6467ec540f99f1cc82caf9fbcc696534d10dcc15e8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10188",
    "kind": "arxiv",
    "version": 1
  }
}