Pith Number

pith:WBQIZI5O

pith:2016:WBQIZI5OO2C5SMVOXOQRBGE6EH

not attested not anchored not stored refs pending

Sharp detection in PCA under correlations: all eigenvalues matter

Edgar Dobriban

arxiv:1602.06896 v1 · 2016-02-22 · 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{WBQIZI5OO2C5SMVOXOQRBGE6EH}

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	2026-05-18T00:34:00.100885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0608ca3ae7685d932aebba110989e21e9bd0d997829f0d51675b3f3cc6bfc72

Aliases

arxiv: 1602.06896 · arxiv_version: 1602.06896v1 · doi: 10.48550/arxiv.1602.06896 · pith_short_12: WBQIZI5OO2C5 · pith_short_16: WBQIZI5OO2C5SMVO · pith_short_8: WBQIZI5O

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/WBQIZI5OO2C5SMVOXOQRBGE6EH \
  | 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: b0608ca3ae7685d932aebba110989e21e9bd0d997829f0d51675b3f3cc6bfc72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7cc1ab89c16df1eeb7c5936d2e27170ef6a24f40c302fe7168e43f76c2b9b04",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2016-02-22T19:11:28Z",
    "title_canon_sha256": "c4025885f8ed7a97968a299417feb0a8a7c2a6565bbbd5c9d9a8a93f70ef805a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06896",
    "kind": "arxiv",
    "version": 1
  }
}