Pith Number

pith:LHXFROYR

pith:2023:LHXFROYRRSYSPKTOEGLS4C7UCR

not attested not anchored not stored refs pending

Fast Sparse PCA via Positive Semidefinite Projection for Unsupervised Feature Selection

Junjing Zheng, Kai Huo, Li Liu, Weidong Jiang, Xinyu Zhang, Yongxiang Liu

arxiv:2309.06202 v1 · 2023-09-12 · cs.CV

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LHXFROYRRSYSPKTOEGLS4C7UCR}

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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

Enhancing Unsupervised Feature Selection via Double Sparsity Constrained Optimization

Receipt and verification

First computed	2026-07-05T06:50:04.961561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59ee58bb118cb127aa6e21972e0bf4146d38c0c03ab0fad31c136bfad2eb1299

Aliases

arxiv: 2309.06202 · arxiv_version: 2309.06202v1 · doi: 10.48550/arxiv.2309.06202 · pith_short_12: LHXFROYRRSYS · pith_short_16: LHXFROYRRSYSPKTO · pith_short_8: LHXFROYR

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/LHXFROYRRSYSPKTOEGLS4C7UCR \
  | 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: 59ee58bb118cb127aa6e21972e0bf4146d38c0c03ab0fad31c136bfad2eb1299

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66c2c54e29386f1c0ba66e198b59da2e7c46875fac019974d23811468e3fd061",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2023-09-12T13:10:06Z",
    "title_canon_sha256": "f84629de4afc76ab336a7a58dfe3ee7475151d5856de9b94549e2be0a69f33dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.06202",
    "kind": "arxiv",
    "version": 1
  }
}