Pith Number

pith:OFHBF2WS

pith:2009:OFHBF2WS5XFD4WCJA4XY6OSWZV

not attested not anchored not stored refs pending

Nonparametric Independence Screening in Sparse Ultra-High Dimensional Additive Models

Jianqing Fan, Rui Song, Yang Feng

arxiv:0912.2695 v2 · 2009-12-14 · stat.ME · math.ST · stat.CO · stat.ML · 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{OFHBF2WS5XFD4WCJA4XY6OSWZV}

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	2026-05-18T04:31:29.965493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

714e12ead2edca3e5849072f8f3a56cd6f3bfc5781059f0d904ffb2a060c0a69

Aliases

arxiv: 0912.2695 · arxiv_version: 0912.2695v2 · doi: 10.48550/arxiv.0912.2695 · pith_short_12: OFHBF2WS5XFD · pith_short_16: OFHBF2WS5XFD4WCJ · pith_short_8: OFHBF2WS

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/OFHBF2WS5XFD4WCJA4XY6OSWZV \
  | 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: 714e12ead2edca3e5849072f8f3a56cd6f3bfc5781059f0d904ffb2a060c0a69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d1e034b14d7ce3c127c9c9dd3155f64bccfdf241ea85c5b042c247f427439fd",
    "cross_cats_sorted": [
      "math.ST",
      "stat.CO",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2009-12-14T17:35:50Z",
    "title_canon_sha256": "ed08cfb44dbf62b541fd7b9bd5b1a78eeeff1ac6c56015f2d12e07bed388ed17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2695",
    "kind": "arxiv",
    "version": 2
  }
}