Pith Number

pith:B2XNUIWO

pith:2018:B2XNUIWOIV3YOULUYCDD64VWLX

not attested not anchored not stored refs pending

Feature selection in weakly coherent matrices

Stephane Chretien, Zhen-Wai Olivier HO

arxiv:1804.01119 v1 · 2018-04-03 · 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{B2XNUIWOIV3YOULUYCDD64VWLX}

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	2026-05-18T00:19:16.059729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0eaeda22ce4577875174c0863f72b65dfa5d6dccb80e3694ad66840e81cff118

Aliases

arxiv: 1804.01119 · arxiv_version: 1804.01119v1 · doi: 10.48550/arxiv.1804.01119 · pith_short_12: B2XNUIWOIV3Y · pith_short_16: B2XNUIWOIV3YOULU · pith_short_8: B2XNUIWO

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/B2XNUIWOIV3YOULUYCDD64VWLX \
  | 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: 0eaeda22ce4577875174c0863f72b65dfa5d6dccb80e3694ad66840e81cff118

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fecec9943033a7c9cadcd226ba01a99d41e92b92069ac9e453ab8cf95398a661",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-04-03T18:26:46Z",
    "title_canon_sha256": "f55b4cd62a980d839f5bfde1ca10dfb7fd1017e8df28c00983e8454b804ee782"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01119",
    "kind": "arxiv",
    "version": 1
  }
}