Pith Number

pith:A22KC2SQ

pith:2019:A22KC2SQ2VI72ZCCDE4BS2OW7H

not attested not anchored not stored refs pending

On maximum volume submatrices and cross approximation for symmetric semidefinite and diagonally dominant matrices

Alice Cortinovis, Daniel Kressner, Stefano Massei

arxiv:1902.02283 v1 · 2019-02-06 · math.NA · cs.DM

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A22KC2SQ2VI72ZCCDE4BS2OW7H}

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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

Low-rank approximation in the Frobenius norm by column and row subset selection

Receipt and verification

First computed	2026-05-17T23:54:37.405605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06b4a16a50d551fd644219381969d6f9e582d3da56ebe8e76c02b4d43c6b7532

Aliases

arxiv: 1902.02283 · arxiv_version: 1902.02283v1 · doi: 10.48550/arxiv.1902.02283 · pith_short_12: A22KC2SQ2VI7 · pith_short_16: A22KC2SQ2VI72ZCC · pith_short_8: A22KC2SQ

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/A22KC2SQ2VI72ZCCDE4BS2OW7H \
  | 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: 06b4a16a50d551fd644219381969d6f9e582d3da56ebe8e76c02b4d43c6b7532

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "271c7437abd9ce76bbe5f01e06474ac1bd9708e2078bf9d3f20e2c8eb1921a30",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-02-06T17:19:04Z",
    "title_canon_sha256": "9dd08c8e433e97edac0769337937ea697e2a1e39231416ff4f839764e96d76b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02283",
    "kind": "arxiv",
    "version": 1
  }
}