Pith Number

pith:ZNMZCFLN

pith:2010:ZNMZCFLNWNUC5GQOJLZKAQL5IL

not attested not anchored not stored refs pending

Optimal selection of reduced rank estimators of high-dimensional matrices

Florentina Bunea, Marten H. Wegkamp, Yiyuan She

arxiv:1004.2995 v4 · 2010-04-18 · 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{ZNMZCFLNWNUC5GQOJLZKAQL5IL}

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	2026-05-18T04:10:57.200728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb5991156db3682e9a0e4af2a0417d42d8cb83eaf506c230adb8e33f695018a5

Aliases

arxiv: 1004.2995 · arxiv_version: 1004.2995v4 · doi: 10.48550/arxiv.1004.2995 · pith_short_12: ZNMZCFLNWNUC · pith_short_16: ZNMZCFLNWNUC5GQO · pith_short_8: ZNMZCFLN

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/ZNMZCFLNWNUC5GQOJLZKAQL5IL \
  | 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: cb5991156db3682e9a0e4af2a0417d42d8cb83eaf506c230adb8e33f695018a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ec6b6c488427701ac65f332c6430c0706d4c541bea8ec09945d10f24bbdb767",
    "cross_cats_sorted": [
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2010-04-18T04:18:27Z",
    "title_canon_sha256": "8907518a44c0ed660b60bbd9cec7c23ffac1ba2388ca491550c7707e3b7c1fa7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.2995",
    "kind": "arxiv",
    "version": 4
  }
}