Pith Number

pith:WVN35SCW

pith:2014:WVN35SCWO6V2NAZHKHOGEOG3FS

not attested not anchored not stored refs pending

On the principal components of sample covariance matrices

Alex Bloemendal, Antti Knowles, Horng-Tzer Yau, Jun Yin

arxiv:1404.0788 v3 · 2014-04-03 · math.PR · math-ph · math.MP · 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{WVN35SCWO6V2NAZHKHOGEOG3FS}

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	2026-05-18T02:29:17.485430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b55bbec85677aba6832751dc6238db2ca259a9be8d7f43cd1b7614a5aa66fec8

Aliases

arxiv: 1404.0788 · arxiv_version: 1404.0788v3 · doi: 10.48550/arxiv.1404.0788 · pith_short_12: WVN35SCWO6V2 · pith_short_16: WVN35SCWO6V2NAZH · pith_short_8: WVN35SCW

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/WVN35SCWO6V2NAZHKHOGEOG3FS \
  | 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: b55bbec85677aba6832751dc6238db2ca259a9be8d7f43cd1b7614a5aa66fec8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9e1668964a2b8b1cb1b4816c57288f48c7db04d36ebbeb9251b7d085b3b66ef",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2014-04-03T07:41:08Z",
    "title_canon_sha256": "b5966f7542baab1ef41275283e6f1db495f3a89f2d8473993a67cdd3a1cd64b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0788",
    "kind": "arxiv",
    "version": 3
  }
}