Pith Number

pith:WTHNAN7O

pith:2020:WTHNAN7OESYV7B3ZXWMHLCG7TN

not attested not anchored not stored refs pending

Learning Kernel Tests Without Data Splitting

Bernhard Sch\"olkopf, Jonas M. K\"ubler, Krikamol Muandet, Wittawat Jitkrittum

arxiv:2006.02286 v3 · 2020-06-03 · cs.LG · 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{WTHNAN7OESYV7B3ZXWMHLCG7TN}

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	2026-07-05T01:43:57.440694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4ced037ee24b15f8779bd987588df9b4fb9b067f24ac183d76e60f52ee83cd1

Aliases

arxiv: 2006.02286 · arxiv_version: 2006.02286v3 · doi: 10.48550/arxiv.2006.02286 · pith_short_12: WTHNAN7OESYV · pith_short_16: WTHNAN7OESYV7B3Z · pith_short_8: WTHNAN7O

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/WTHNAN7OESYV7B3ZXWMHLCG7TN \
  | 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: b4ced037ee24b15f8779bd987588df9b4fb9b067f24ac183d76e60f52ee83cd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb00c5cc92d8d6e1a61777d8d7c73f0e0a0b83cf5d4ffe0a76eaa895e904d396",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-06-03T14:07:39Z",
    "title_canon_sha256": "e6822c7d47acf53b487e733b1c6f4d01208717aa489d1d8d4fcc356cb550a059"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.02286",
    "kind": "arxiv",
    "version": 3
  }
}