Pith Number

pith:GCBFE2MO

pith:2019:GCBFE2MO4JLVR6Y7K7ZW4YTJHV

not attested not anchored not stored refs pending

A General $\mathcal{O}(n^2)$ Hyper-Parameter Optimization for Gaussian Process Regression with Cross-Validation and Non-linearly Constrained ADMM

Feng Yin, Jiawei Zhang, Linning Xu, Shuguang Cui, Zhi-Quan Luo

arxiv:1906.02387 v2 · 2019-06-06 · stat.ML · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GCBFE2MO4JLVR6Y7K7ZW4YTJHV}

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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	2026-05-17T23:43:59.884464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

308252698ee25758fb1f57f36e62693d7eef87ef5e770ef6af329ba47fe3da29

Aliases

arxiv: 1906.02387 · arxiv_version: 1906.02387v2 · doi: 10.48550/arxiv.1906.02387 · pith_short_12: GCBFE2MO4JLV · pith_short_16: GCBFE2MO4JLVR6Y7 · pith_short_8: GCBFE2MO

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/GCBFE2MO4JLVR6Y7K7ZW4YTJHV \
  | 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: 308252698ee25758fb1f57f36e62693d7eef87ef5e770ef6af329ba47fe3da29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e59ca3a748afcc851d480739829f456d71dbe6be0061fe3d2c0dde1c70b2262",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-06-06T02:33:09Z",
    "title_canon_sha256": "5ad04aea8aa84cd4ee026efff4718bca5dcef28fd198942e985d10e79f08c689"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02387",
    "kind": "arxiv",
    "version": 2
  }
}