Pith Number

pith:WNENYA7N

pith:2020:WNENYA7NFIB2MCL2634N45AEC6

not attested not anchored not stored refs pending

IVFS: Simple and Efficient Feature Selection for High Dimensional Topology Preservation

Chengxi Wu, Ping Li, Xiaoyun Li

arxiv:2004.01299 v1 · 2020-04-02 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WNENYA7NFIB2MCL2634N45AEC6}

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	2026-07-05T00:52:31.749322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b348dc03ed2a03a6097af6f8de74041781bcd216ab24ecc4bb18e61c92f57aa4

Aliases

arxiv: 2004.01299 · arxiv_version: 2004.01299v1 · doi: 10.48550/arxiv.2004.01299 · pith_short_12: WNENYA7NFIB2 · pith_short_16: WNENYA7NFIB2MCL2 · pith_short_8: WNENYA7N

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/WNENYA7NFIB2MCL2634N45AEC6 \
  | 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: b348dc03ed2a03a6097af6f8de74041781bcd216ab24ecc4bb18e61c92f57aa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc31f52bf36f75a4e8851e1ea4e9188b10df53b2564449ecf34a86d92650b66f",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2020-04-02T23:05:00Z",
    "title_canon_sha256": "91612fd0f1ba694bd0f611cf17423109a702643842d943a9efb4073b106c1731"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.01299",
    "kind": "arxiv",
    "version": 1
  }
}