Pith Number

pith:6S4KALKY

pith:2025:6S4KALKY3XM4QFAUG77BVEYJTL

not attested not anchored not stored refs pending

Optimised Feature Subset Selection via Simulated Annealing

\'Alvaro Rubio-Garc\'ia, Diego Porras, Fernando Mart\'inez-Garc\'ia, Juan Jos\'e Garc\'ia-Ripoll, Samuel Fern\'andez-Lorenzo

arxiv:2507.23568 v1 · 2025-07-31 · cs.LG · cond-mat.stat-mech · 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{6S4KALKY3XM4QFAUG77BVEYJTL}

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	2026-07-05T11:46:27.002710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4b8a02d58ddd9c8141437fe1a93099adc9b9d409ca63d4f45535c4cb064cc83

Aliases

arxiv: 2507.23568 · arxiv_version: 2507.23568v1 · doi: 10.48550/arxiv.2507.23568 · pith_short_12: 6S4KALKY3XM4 · pith_short_16: 6S4KALKY3XM4QFAU · pith_short_8: 6S4KALKY

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/6S4KALKY3XM4QFAUG77BVEYJTL \
  | 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: f4b8a02d58ddd9c8141437fe1a93099adc9b9d409ca63d4f45535c4cb064cc83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02ee6d46ed53942619e6db2a1ab6abcaf59da43d58583bc042f630404df8ebd7",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-07-31T13:57:38Z",
    "title_canon_sha256": "69ecb4637e92240b5f60c0a1a1487e1c8f8cdfa864fd0401ce7a06f0940dae75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.23568",
    "kind": "arxiv",
    "version": 1
  }
}