Pith Number

pith:OKSGOKT6

pith:2024:OKSGOKT6BCOQUSGTX5JMYLNY3L

not attested not anchored not stored refs pending

Column and row subset selection using nuclear scores: algorithms and theory for Nystr\"{o}m approximation, CUR decomposition, and graph Laplacian reduction

Mark Fornace, Michael Lindsey

arxiv:2407.01698 v2 · 2024-07-01 · math.NA · cs.NA · 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{OKSGOKT6BCOQUSGTX5JMYLNY3L}

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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

An approximation theory for Markov chain compression

Receipt and verification

First computed	2026-07-05T08:53:23.719871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72a4672a7e089d0a48d3bf52cc2db8dae37caf8886faaf7fbbc40894b201e045

Aliases

arxiv: 2407.01698 · arxiv_version: 2407.01698v2 · doi: 10.48550/arxiv.2407.01698 · pith_short_12: OKSGOKT6BCOQ · pith_short_16: OKSGOKT6BCOQUSGT · pith_short_8: OKSGOKT6

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/OKSGOKT6BCOQUSGTX5JMYLNY3L \
  | 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: 72a4672a7e089d0a48d3bf52cc2db8dae37caf8886faaf7fbbc40894b201e045

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfdc5978cae14b45735330121488dd7684c1c4b25d1a4624ffdf2a77fad28be7",
    "cross_cats_sorted": [
      "cs.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-07-01T18:10:19Z",
    "title_canon_sha256": "0de52f011919df607b34530480df87127c4207eb5f4d00252fcce29147288305"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.01698",
    "kind": "arxiv",
    "version": 2
  }
}