Pith Number

pith:DCTAPDNU

pith:2012:DCTAPDNUMOPVMUZDJY6NMNLFC3

not attested not anchored not stored refs pending

Minimax sparse principal subspace estimation in high dimensions

Jing Lei, Vincent Q. Vu

arxiv:1211.0373 v4 · 2012-11-02 · math.ST · stat.ML · 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{DCTAPDNUMOPVMUZDJY6NMNLFC3}

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	2026-05-18T03:03:22.896304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18a6078db4639f5653234e3cd6356516f3d5f9770c8da02c1082d3c94ecfd9be

Aliases

arxiv: 1211.0373 · arxiv_version: 1211.0373v4 · doi: 10.48550/arxiv.1211.0373 · pith_short_12: DCTAPDNUMOPV · pith_short_16: DCTAPDNUMOPVMUZD · pith_short_8: DCTAPDNU

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/DCTAPDNUMOPVMUZDJY6NMNLFC3 \
  | 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: 18a6078db4639f5653234e3cd6356516f3d5f9770c8da02c1082d3c94ecfd9be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a71badbab9c03c41e261bcf0a43b8b2ab92132925537ae3f1de71e81d294402",
    "cross_cats_sorted": [
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-11-02T06:05:47Z",
    "title_canon_sha256": "fb7c723e86a14de6ea8e86fc161b31c76222a033ea374110534462fb08f2f6c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0373",
    "kind": "arxiv",
    "version": 4
  }
}