Pith Number

pith:JZVHUX35

pith:2025:JZVHUX35GTX6FDE2SKUD4NNZWU

not attested not anchored not stored refs pending

Faster Low-Rank Approximation and Kernel Ridge Regression via the Block-Nystr\"om Method

Micha{\l} Derezi\'nski, Sachin Garg

arxiv:2506.17556 v2 · 2025-06-21 · cs.DS · 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{JZVHUX35GTX6FDE2SKUD4NNZWU}

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	2026-07-05T11:39:55.370335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e6a7a5f7d34efe28c9a92a83e35b9b52a77f711694ed51265f4cbcae7619498

Aliases

arxiv: 2506.17556 · arxiv_version: 2506.17556v2 · doi: 10.48550/arxiv.2506.17556 · pith_short_12: JZVHUX35GTX6 · pith_short_16: JZVHUX35GTX6FDE2 · pith_short_8: JZVHUX35

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/JZVHUX35GTX6FDE2SKUD4NNZWU \
  | 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: 4e6a7a5f7d34efe28c9a92a83e35b9b52a77f711694ed51265f4cbcae7619498

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c4869ea87a68ed645a02e4c84f678d7e5ed9f16289ddffc8978c531d802aff6",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2025-06-21T02:50:37Z",
    "title_canon_sha256": "ab9fdcd4e3344a7ed458bd303895a90a211dddfcb6fc3b0938fc0e2c7a759736"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.17556",
    "kind": "arxiv",
    "version": 2
  }
}