Pith Number

pith:RRVHR4EP

pith:2025:RRVHR4EPSO4Y4YV3CWVDDHLUX4

not attested not anchored not stored refs pending

Distribution of singular values in large sample cross-covariance matrices

Arabind Swain, Ilya Nemenman, Sean Alexander Ridout

arxiv:2502.05254 v3 · 2025-02-07 · math.ST · cond-mat.dis-nn · physics.data-an · 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{RRVHR4EPSO4Y4YV3CWVDDHLUX4}

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.

Cited by

1 paper in Pith

Better Together: Cross and Joint Covariances Enhance Signal Detectability in Undersampled Data

Receipt and verification

First computed	2026-07-05T12:00:46.230654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c6a78f08f93b98e62bb15aa319d74bf3bf9425106baf65f6b2786f68d81db8b

Aliases

arxiv: 2502.05254 · arxiv_version: 2502.05254v3 · doi: 10.48550/arxiv.2502.05254 · pith_short_12: RRVHR4EPSO4Y · pith_short_16: RRVHR4EPSO4Y4YV3 · pith_short_8: RRVHR4EP

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/RRVHR4EPSO4Y4YV3CWVDDHLUX4 \
  | 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: 8c6a78f08f93b98e62bb15aa319d74bf3bf9425106baf65f6b2786f68d81db8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1777623694eb6fb763fe33ba8b1305ad674388a86c44c64b6a2cb8c14a07f327",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "physics.data-an",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2025-02-07T18:07:37Z",
    "title_canon_sha256": "cced1bffc2f2d47e6baf6ab0f1f021863bc1d0e336e0f0f304d09b16b83f7838"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.05254",
    "kind": "arxiv",
    "version": 3
  }
}