Pith Number

pith:OHTSG4XM

pith:2012:OHTSG4XMEPNTDN4QTFJN6ZU4BB

not attested not anchored not stored refs pending

Recursive Robust PCA or Recursive Sparse Recovery in Large but Structured Noise

Brian Lois, Chenlu Qiu, Leslie Hogben, Namrata Vaswani

arxiv:1211.3754 v10 · 2012-11-15 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OHTSG4XMEPNTDN4QTFJN6ZU4BB}

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	2026-05-18T02:44:57.038605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71e72372ec23db31b7909952df669c087018884b632ee43605dc7af4c141f772

Aliases

arxiv: 1211.3754 · arxiv_version: 1211.3754v10 · doi: 10.48550/arxiv.1211.3754 · pith_short_12: OHTSG4XMEPNT · pith_short_16: OHTSG4XMEPNTDN4Q · pith_short_8: OHTSG4XM

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/OHTSG4XMEPNTDN4QTFJN6ZU4BB \
  | 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: 71e72372ec23db31b7909952df669c087018884b632ee43605dc7af4c141f772

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "921e7a85611ad482da36be7bd4fd5d98b09fa2c95e34d1df773a434d41122e34",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-11-15T21:10:32Z",
    "title_canon_sha256": "95bc6ca2505a5d94405ccc6e899130d66fe338e9cb36f7350f12cb7497fcf969"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3754",
    "kind": "arxiv",
    "version": 10
  }
}