Pith Number

pith:KBHGJ5DT

pith:2020:KBHGJ5DTAWLPTA6Z56JBO5WH3G

not attested not anchored not stored refs pending

Improved guarantees and a multiple-descent curve for Column Subset Selection and the Nystr\"om method

Michael W. Mahoney, Micha{\l} Derezi\'nski, Rajiv Khanna

arxiv:2002.09073 v3 · 2020-02-21 · 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{KBHGJ5DTAWLPTA6Z56JBO5WH3G}

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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

Perturbations of CUR Decompositions

Receipt and verification

First computed	2026-07-05T02:00:43.862148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

504e64f4730596f983d9ef921776c7d9bf5864ee639c666c3e8705970767713f

Aliases

arxiv: 2002.09073 · arxiv_version: 2002.09073v3 · doi: 10.48550/arxiv.2002.09073 · pith_short_12: KBHGJ5DTAWLP · pith_short_16: KBHGJ5DTAWLPTA6Z · pith_short_8: KBHGJ5DT

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/KBHGJ5DTAWLPTA6Z56JBO5WH3G \
  | 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: 504e64f4730596f983d9ef921776c7d9bf5864ee639c666c3e8705970767713f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d723674ee8592ba12c6d8ec446bcc2d6e08e3a86fb25cff787908ac12140535",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-02-21T00:43:06Z",
    "title_canon_sha256": "d49f3e14a4b4204a8534450457eb0b4ac66e6e7b8687567c65b8967e11650a02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.09073",
    "kind": "arxiv",
    "version": 3
  }
}