Pith Number

pith:UB6K5K2M

pith:2019:UB6K5K2MUY3EJL2XIPECBWYN4L

not attested not anchored not stored refs pending

Unrestricted Permutation forces Extrapolation: Variable Importance Requires at least One More Model, or There Is No Free Variable Importance

Giles Hooker, Lucas Mentch, Siyu Zhou

arxiv:1905.03151 v2 · 2019-05-01 · stat.ME · 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{UB6K5K2MUY3EJL2XIPECBWYN4L}

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

Causal SHAP: Feature Attribution with Dependency Awareness through Causal Discovery

Receipt and verification

First computed	2026-07-05T03:20:44.856905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a07caeab4ca63644af5743c820db0de2d66db0778cf54c904b39327ed1d2b0b3

Aliases

arxiv: 1905.03151 · arxiv_version: 1905.03151v2 · doi: 10.48550/arxiv.1905.03151 · pith_short_12: UB6K5K2MUY3E · pith_short_16: UB6K5K2MUY3EJL2X · pith_short_8: UB6K5K2M

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/UB6K5K2MUY3EJL2XIPECBWYN4L \
  | 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: a07caeab4ca63644af5743c820db0de2d66db0778cf54c904b39327ed1d2b0b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8aed8a8a0ffeec63ed28e17abfff98dd1a84d37fb0aabf1ded86b767241550a",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2019-05-01T22:37:47Z",
    "title_canon_sha256": "c93d80a9cab8775a85ec3469bc56265f11925968b37271953a9383df246d8436"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03151",
    "kind": "arxiv",
    "version": 2
  }
}