Pith Number

pith:A2ZWJ4K5

pith:2026:A2ZWJ4K5JR4IDDHPFT7R3RXHWQ

not attested not anchored not stored refs pending

Fast Nonparametric Conditional Independence Testing via Two-Stage Regression

Eric V. Strobl

arxiv:2606.18011 v1 · 2026-06-16 · stat.ML · cs.LG · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A2ZWJ4K5JR4IDDHPFT7R3RXHWQ}

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	2026-06-19T16:10:45.803127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06b364f15d4c78818cef2cff1dc6e7b43b27d0b15d889e2dcd2d85400b6ecaf8

Aliases

arxiv: 2606.18011 · arxiv_version: 2606.18011v1 · doi: 10.48550/arxiv.2606.18011 · pith_short_12: A2ZWJ4K5JR4I · pith_short_16: A2ZWJ4K5JR4IDDHP · pith_short_8: A2ZWJ4K5

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/A2ZWJ4K5JR4IDDHPFT7R3RXHWQ \
  | 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: 06b364f15d4c78818cef2cff1dc6e7b43b27d0b15d889e2dcd2d85400b6ecaf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c27d0d6d9ae10a626c1dd5d7928009046cc1ac62a2668cd1a339943e9ad2173",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ME"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-06-16T14:55:00Z",
    "title_canon_sha256": "aa22609348346fca173ccb83faa776646cc34e82685f62b779ddf29b0ec62756"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.18011",
    "kind": "arxiv",
    "version": 1
  }
}