Pith Number

pith:HL6Q3FBK

pith:2018:HL6Q3FBKO7NTCEXZMM7IGQIUIL

not attested not anchored not stored refs pending

On efficient global optimization via universal Kriging surrogate models

Koji Shimoyama, Pramudita Satria Palar

arxiv:1803.08667 v1 · 2018-03-23 · 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{HL6Q3FBKO7NTCEXZMM7IGQIUIL}

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	2026-05-18T00:20:18.921341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3afd0d942a77db3112f9633e83411442fbd719a2473df52b6d9a9ac52c390bab

Aliases

arxiv: 1803.08667 · arxiv_version: 1803.08667v1 · doi: 10.48550/arxiv.1803.08667 · pith_short_12: HL6Q3FBKO7NT · pith_short_16: HL6Q3FBKO7NTCEXZ · pith_short_8: HL6Q3FBK

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/HL6Q3FBKO7NTCEXZMM7IGQIUIL \
  | 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: 3afd0d942a77db3112f9633e83411442fbd719a2473df52b6d9a9ac52c390bab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8497217f3c71b4511403a411c950b986640a3c1b4868980a61bb290559d52467",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-03-23T06:25:23Z",
    "title_canon_sha256": "0caf793074caed87455909e75884ff226f1f58f72c4cd8c4d7a52d4ae5bf8270"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08667",
    "kind": "arxiv",
    "version": 1
  }
}