Pith Number

pith:AVXZH45P

pith:2021:AVXZH45P43KFS3L5DVZBCH4N4V

not attested not anchored not stored refs pending

Kernel PCA with the Nystr\"om method

Fredrik Hallgren

arxiv:2109.05578 v3 · 2021-09-12 · 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{AVXZH45P43KFS3L5DVZBCH4N4V}

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.

Cited by

1 paper in Pith

Kernel PCA for Out-of-Distribution Detection: Non-Linear Kernel Selection and Approximation

Receipt and verification

First computed	2026-07-05T04:49:42.482678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

056f93f3afe6d4596d7d1d72111f8de549e71de1e551cfc3929bf5190e0338b8

Aliases

arxiv: 2109.05578 · arxiv_version: 2109.05578v3 · doi: 10.48550/arxiv.2109.05578 · pith_short_12: AVXZH45P43KF · pith_short_16: AVXZH45P43KFS3L5 · pith_short_8: AVXZH45P

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/AVXZH45P43KFS3L5DVZBCH4N4V \
  | 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: 056f93f3afe6d4596d7d1d72111f8de549e71de1e551cfc3929bf5190e0338b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5425972f1d40d285a4fd8462fd78dd7c3cd72051b2ccfab9db5259519fc6efb9",
    "cross_cats_sorted": [
      "cs.LG",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2021-09-12T18:08:31Z",
    "title_canon_sha256": "224cb4a8673969629cca44f7b9b5e034ab8f9396a18c96da8aad21d9297c384f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.05578",
    "kind": "arxiv",
    "version": 3
  }
}