Pith Number

pith:CDMXA6W3

pith:2019:CDMXA6W3RMBGAX5SF2RWNBFIO6

not attested not anchored not stored refs pending

Gain with no Pain: Efficient Kernel-PCA by Nystr\"om Sampling

Alessandro Rudi, Bharath Sriperumbudur, Lorenzo Rosasco, Nicholas Sterge

arxiv:1907.05226 v1 · 2019-07-11 · stat.ML · cs.LG · math.ST · stat.TH

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CDMXA6W3RMBGAX5SF2RWNBFIO6}

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	2026-05-17T23:40:51.110762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10d9707adb8b02605fb22ea36684a877aef1326cbc5eb7474f2ab850ab86a863

Aliases

arxiv: 1907.05226 · arxiv_version: 1907.05226v1 · doi: 10.48550/arxiv.1907.05226 · pith_short_12: CDMXA6W3RMBG · pith_short_16: CDMXA6W3RMBGAX5S · pith_short_8: CDMXA6W3

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/CDMXA6W3RMBGAX5SF2RWNBFIO6 \
  | 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: 10d9707adb8b02605fb22ea36684a877aef1326cbc5eb7474f2ab850ab86a863

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f784428c43a68f64adb9297d11bef2dea62c8baefb5798eac7e294ca75533cf2",
    "cross_cats_sorted": [
      "cs.LG",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-07-11T14:16:25Z",
    "title_canon_sha256": "a9d7599627e696610c8912e9b4fcae16b54dbfebbe63de54100a1908154a6628"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05226",
    "kind": "arxiv",
    "version": 1
  }
}