Pith Number

pith:NO6CYLEP

pith:2021:NO6CYLEPZ5VDQPZIIOX4RMPKCG

not attested not anchored not stored refs pending

A Witness Two-Sample Test

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

arxiv:2102.05573 v3 · 2021-02-10 · 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{NO6CYLEPZ5VDQPZIIOX4RMPKCG}

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	2026-07-05T03:56:00.696974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bbc2c2c8fcf6a383f2843afc8b1ea11a985e218127c538e7fe85614f4f850b3

Aliases

arxiv: 2102.05573 · arxiv_version: 2102.05573v3 · doi: 10.48550/arxiv.2102.05573 · pith_short_12: NO6CYLEPZ5VD · pith_short_16: NO6CYLEPZ5VDQPZI · pith_short_8: NO6CYLEP

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/NO6CYLEPZ5VDQPZIIOX4RMPKCG \
  | 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: 6bbc2c2c8fcf6a383f2843afc8b1ea11a985e218127c538e7fe85614f4f850b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a5b7551d0553c2c6d78f2cb8a6e98573107c9f44d774df1e67e754d74b0e572",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-02-10T17:13:21Z",
    "title_canon_sha256": "04ede079b086ee175a5a288a65f381ae83c89f35683405ebae3fbb475831060a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.05573",
    "kind": "arxiv",
    "version": 3
  }
}