Pith Number

pith:KDZWTE4A

pith:2015:KDZWTE4AMOSIHJTFBH5KJ3HA7L

not attested not anchored not stored refs pending

Fast optimization of Multithreshold Entropy Linear Classifier

Rafal Jozefowicz, Wojciech Marian Czarnecki

arxiv:1504.04739 v1 · 2015-04-18 · 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{KDZWTE4AMOSIHJTFBH5KJ3HA7L}

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	2026-05-18T02:18:24.938000Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50f369938063a483a66509faa4ece0faf0f577dd35c515fc9a0f0906eb4cc8e7

Aliases

arxiv: 1504.04739 · arxiv_version: 1504.04739v1 · doi: 10.48550/arxiv.1504.04739 · pith_short_12: KDZWTE4AMOSI · pith_short_16: KDZWTE4AMOSIHJTF · pith_short_8: KDZWTE4A

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/KDZWTE4AMOSIHJTFBH5KJ3HA7L \
  | 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: 50f369938063a483a66509faa4ece0faf0f577dd35c515fc9a0f0906eb4cc8e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e57f7bef275438b7250f1b0e600e49f4304d1163dde57052c091a1c6d7a33074",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-04-18T16:19:22Z",
    "title_canon_sha256": "c113ec075b542baecb820328444c66762669d3219dd9a9d3403f9484c9794cf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04739",
    "kind": "arxiv",
    "version": 1
  }
}