Pith Number

pith:VNJ44R2B

pith:2015:VNJ44R2BDOP3F2L5E65Z7G4CZS

not attested not anchored not stored refs pending

Robust Subspace Clustering via Smoothed Rank Approximation

Chong Peng, Qiang Cheng, Zhao Kang

arxiv:1508.04467 v1 · 2015-08-18 · cs.CV · cs.IT · cs.LG · cs.NA · math.IT · 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{VNJ44R2BDOP3F2L5E65Z7G4CZS}

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	2026-05-18T01:35:02.717011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab53ce47411b9fb2e97d27bb9f9b82cc8840c1b9f220cec2433651419baf5653

Aliases

arxiv: 1508.04467 · arxiv_version: 1508.04467v1 · doi: 10.48550/arxiv.1508.04467 · pith_short_12: VNJ44R2BDOP3 · pith_short_16: VNJ44R2BDOP3F2L5 · pith_short_8: VNJ44R2B

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/VNJ44R2BDOP3F2L5E65Z7G4CZS \
  | 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: ab53ce47411b9fb2e97d27bb9f9b82cc8840c1b9f220cec2433651419baf5653

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6d7ba66f0c55f5d7ebf2fd6a0704487edc1e7c92c4ad2e263ba1a83604814be",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "cs.NA",
      "math.IT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-08-18T21:54:03Z",
    "title_canon_sha256": "1e400f00986ab94b8f421154ec2f623bfdfaf270d71035f8dcc56f2aa84e16c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04467",
    "kind": "arxiv",
    "version": 1
  }
}