Pith Number

pith:LK6YIMV5

pith:2019:LK6YIMV5ZL6RFEFJFOOVCQVFGP

not attested not anchored not stored refs pending

KL property of exponent $1/2$ of $\ell_{2,0}$-norm and DC regularized factorizations for low-rank matrix recovery

Shaohua Pan, Shujun Bi, Ting Tao

arxiv:1908.09078 v1 · 2019-08-24 · math.OC · cs.LG · 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{LK6YIMV5ZL6RFEFJFOOVCQVFGP}

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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.

Cited by

1 paper in Pith

Nonconvex Optimization Framework for Group-Sparse Feedback Linear-Quadratic Optimal Control: Penalty Approach

Receipt and verification

First computed	2026-07-04T23:59:36.576810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5abd8432bdcafd1290a92b9d5142a533c78292dabde85fdde7a3b7607a5ea285

Aliases

arxiv: 1908.09078 · arxiv_version: 1908.09078v1 · doi: 10.48550/arxiv.1908.09078 · pith_short_12: LK6YIMV5ZL6R · pith_short_16: LK6YIMV5ZL6RFEFJ · pith_short_8: LK6YIMV5

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/LK6YIMV5ZL6RFEFJFOOVCQVFGP \
  | 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: 5abd8432bdcafd1290a92b9d5142a533c78292dabde85fdde7a3b7607a5ea285

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43e712cfcf2bd9b48ea274f109e7022a6e8fa5521e140a122a4f55b452703497",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-08-24T02:56:17Z",
    "title_canon_sha256": "0803bac7ebf676a572fbf20392dbcd5fc12c7837f9b1823a55152ff9edd23f5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09078",
    "kind": "arxiv",
    "version": 1
  }
}