Pith Number

pith:WKLNTDQB

pith:2019:WKLNTDQBCXSADRNF63TEDPCRRR

not attested not anchored not stored refs pending

Multi-level Thresholding Test for High Dimensional Covariance Matrices

Bin Guo, Song Xi Chen, Yumou Qiu

arxiv:1910.13074 v1 · 2019-10-29 · math.ST · stat.ME · 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{WKLNTDQBCXSADRNF63TEDPCRRR}

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	2026-07-05T00:15:26.731063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b296d98e0115e401c5a5f6e641bc518c49a1720d47e26bade1b6c28cd3908d64

Aliases

arxiv: 1910.13074 · arxiv_version: 1910.13074v1 · doi: 10.48550/arxiv.1910.13074 · pith_short_12: WKLNTDQBCXSA · pith_short_16: WKLNTDQBCXSADRNF · pith_short_8: WKLNTDQB

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/WKLNTDQBCXSADRNF63TEDPCRRR \
  | 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: b296d98e0115e401c5a5f6e641bc518c49a1720d47e26bade1b6c28cd3908d64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "734b62127b400a59940f9f6e9086a79127486ceee35e4790ecbe09b563448e7d",
    "cross_cats_sorted": [
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2019-10-29T03:58:49Z",
    "title_canon_sha256": "214e5d2260959e7d5afe7ac954eb9ffcaedd2878fc22dbdf1fe34ba87f6e4b18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.13074",
    "kind": "arxiv",
    "version": 1
  }
}