Pith Number

pith:V5YKMSN2

pith:2019:V5YKMSN27EC7UJCUTCEYOGOAE3

not attested not anchored not stored refs pending

Tight Kernel Query Complexity of Kernel Ridge Regression and Kernel $k$-means Clustering

David P. Woodruff, Manuel Fernandez, Taisuke Yasuda

arxiv:1905.06394 v1 · 2019-05-15 · 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{V5YKMSN27EC7UJCUTCEYOGOAE3}

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	2026-05-17T23:46:02.536710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af70a649baf905fa245498898719c026dc84eb9a498af48f49024c9ab36c2f42

Aliases

arxiv: 1905.06394 · arxiv_version: 1905.06394v1 · doi: 10.48550/arxiv.1905.06394 · pith_short_12: V5YKMSN27EC7 · pith_short_16: V5YKMSN27EC7UJCU · pith_short_8: V5YKMSN2

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/V5YKMSN27EC7UJCUTCEYOGOAE3 \
  | 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: af70a649baf905fa245498898719c026dc84eb9a498af48f49024c9ab36c2f42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37e7d724f72faae800b6b4af02bb6a7da3b2055de71f5ff8b41aa967bf6ae493",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-05-15T19:04:16Z",
    "title_canon_sha256": "24a3681655082a56d9c3296573deb6df8e181a5055f33f9433b867eee4b6b7ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.06394",
    "kind": "arxiv",
    "version": 1
  }
}