Pith Number

pith:HOHJN34Z

pith:2019:HOHJN34ZQAU27PW4YMFCC6LO3A

not attested not anchored not stored refs pending

A Novel Orthogonal Direction Mesh Adaptive Direct Search Approach for SVM Hyperparameter Tuning

Alceu de Souza Britto Jr., Alessandro Lameiras Koerich, Alexandre Reeberg Mello, Jonathan de Matos, Marcelo R. Stemmer

arxiv:1904.11649 v1 · 2019-04-26 · 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{HOHJN34ZQAU27PW4YMFCC6LO3A}

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	2026-05-17T23:47:43.113826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b8e96ef998029afbedcc30a21796ed82980de4a5b52defbb1e2bde4a1ded72d

Aliases

arxiv: 1904.11649 · arxiv_version: 1904.11649v1 · doi: 10.48550/arxiv.1904.11649 · pith_short_12: HOHJN34ZQAU2 · pith_short_16: HOHJN34ZQAU27PW4 · pith_short_8: HOHJN34Z

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/HOHJN34ZQAU27PW4YMFCC6LO3A \
  | 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: 3b8e96ef998029afbedcc30a21796ed82980de4a5b52defbb1e2bde4a1ded72d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fd1ae8a2262348ba5eff289fb0255f286a237cdee1cde27913ccfdb23c696de",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-04-26T02:09:35Z",
    "title_canon_sha256": "5beeb77bfab9ddb184eb0e03448765675649ec81b91af4f5683ec9b9c547b859"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.11649",
    "kind": "arxiv",
    "version": 1
  }
}