Pith Number

pith:6Y3Q2N2O

pith:2018:6Y3Q2N2OEPP5CE256UMKPOLERQ

not attested not anchored not stored refs pending

META-DES.Oracle: Meta-learning and feature selection for ensemble selection

George D. C. Cavalcanti, Rafael M. O Cruz, Robert Sabourin

arxiv:1811.00217 v1 · 2018-11-01 · 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{6Y3Q2N2OEPP5CE256UMKPOLERQ}

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	2026-05-18T00:01:47.846516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6370d374e23dfd1135df518a7b9648c064b5c2a1756c196cbb6838bae0ec554

Aliases

arxiv: 1811.00217 · arxiv_version: 1811.00217v1 · doi: 10.48550/arxiv.1811.00217 · pith_short_12: 6Y3Q2N2OEPP5 · pith_short_16: 6Y3Q2N2OEPP5CE25 · pith_short_8: 6Y3Q2N2O

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/6Y3Q2N2OEPP5CE256UMKPOLERQ \
  | 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: f6370d374e23dfd1135df518a7b9648c064b5c2a1756c196cbb6838bae0ec554

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b3eb5a7f9adb7a2f65ae85a7708428b86ec64687cf0f92ec49e38fbd41ec927",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-11-01T04:20:28Z",
    "title_canon_sha256": "b40e2537afb955557d588f357ce2f8f117a05648ce56322c187ea077e6fb1e83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00217",
    "kind": "arxiv",
    "version": 1
  }
}