Pith Number

pith:JIU5QSKO

pith:2026:JIU5QSKOBAJWD4NS7MTXUBJWJW

not attested not anchored not stored refs pending

Joint estimation of high-dimensional spiked covariance matrices via a partially shared subspace

Changwon Yoon, Jeongyoun Ahn, Minwoo Kim, Sungkyu Jung

arxiv:2607.08123 v1 · 2026-07-09 · stat.ME · stat.AP · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JIU5QSKOBAJWD4NS7MTXUBJWJW}

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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	2026-07-10T01:19:27.284256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a29d8494e081361f1b2fb277a05364d8a86efbe71ab1295c701f142c2bf85f7

Aliases

arxiv: 2607.08123 · arxiv_version: 2607.08123v1 · doi: 10.48550/arxiv.2607.08123 · pith_short_12: JIU5QSKOBAJW · pith_short_16: JIU5QSKOBAJWD4NS · pith_short_8: JIU5QSKO

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/JIU5QSKOBAJWD4NS7MTXUBJWJW \
  | 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: 4a29d8494e081361f1b2fb277a05364d8a86efbe71ab1295c701f142c2bf85f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "740945cc0e6d40fe99d85f6a8c40f71cd606743dcd6ba83f840ec9388ae4262e",
    "cross_cats_sorted": [
      "stat.AP",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-07-09T05:52:39Z",
    "title_canon_sha256": "a0237df4de47dbbf0b2e9689e8072000ef38e90f1c3ac8566b04978ced5bc071"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.08123",
    "kind": "arxiv",
    "version": 1
  }
}