Pith Number

pith:M2U5LR4M

pith:2018:M2U5LR4ML2RUQG5T2CRMAQ3AFZ

not attested not anchored not stored refs pending

Structured and Unstructured Outlier Identification for Robust PCA: A Non iterative, Parameter free Algorithm

Sheetal Kalyani, Vishnu Menon

arxiv:1809.04445 v1 · 2018-09-11 · stat.ML · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M2U5LR4ML2RUQG5T2CRMAQ3AFZ}

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	2026-05-17T23:47:30.325502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66a9d5c78c5ea3481bb3d0a2c043602e6f4a9b23a4b8f7421e1f318c34815647

Aliases

arxiv: 1809.04445 · arxiv_version: 1809.04445v1 · doi: 10.48550/arxiv.1809.04445 · pith_short_12: M2U5LR4ML2RU · pith_short_16: M2U5LR4ML2RUQG5T · pith_short_8: M2U5LR4M

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/M2U5LR4ML2RUQG5T2CRMAQ3AFZ \
  | 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: 66a9d5c78c5ea3481bb3d0a2c043602e6f4a9b23a4b8f7421e1f318c34815647

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9ca347d1f3c3e306769c51de49e5bb472acc9f3a825fb85b7d8dd0abb14182a",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-09-11T07:47:57Z",
    "title_canon_sha256": "3a8a51a831ad33d3fc5cf36cdd8ee36009f2f2132e61cedefca63a0f4560d6c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04445",
    "kind": "arxiv",
    "version": 1
  }
}