Pith Number

pith:5SLEMECW

pith:2014:5SLEMECW6JQVYPOQEQZ64S42PV

not attested not anchored not stored refs pending

Performance Analysis of Tyler's Covariance Estimator

Ami Wiesel, Ilya Soloveychik

arxiv:1401.6926 v4 · 2014-01-27 · 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{5SLEMECW6JQVYPOQEQZ64S42PV}

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	2026-05-18T01:45:12.015915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec96461056f2615c3dd02433ee4b9a7d5ff79b256e0585181deea1f0de19e0b8

Aliases

arxiv: 1401.6926 · arxiv_version: 1401.6926v4 · doi: 10.48550/arxiv.1401.6926 · pith_short_12: 5SLEMECW6JQV · pith_short_16: 5SLEMECW6JQVYPOQ · pith_short_8: 5SLEMECW

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/5SLEMECW6JQVYPOQEQZ64S42PV \
  | 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: ec96461056f2615c3dd02433ee4b9a7d5ff79b256e0585181deea1f0de19e0b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ff7c39054ceec44653ec969294521d85889bd4fa121e86948d6b070b1e2e335",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2014-01-27T16:55:33Z",
    "title_canon_sha256": "9390e1389c127585a9dee89709d45d877a923f8030451c41c39d8c949cdb436a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.6926",
    "kind": "arxiv",
    "version": 4
  }
}