Pith Number

pith:RF4PNYJ2

pith:2009:RF4PNYJ2OKCPMVV63T3UZIUS5Z

not attested not anchored not stored refs pending

Classification and categorical inputs with treed Gaussian process models

Robert B. Gramacy, Tamara Broderick

arxiv:0904.4891 v3 · 2009-04-30 · stat.ME · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RF4PNYJ2OKCPMVV63T3UZIUS5Z}

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	2026-05-18T04:40:20.637227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8978f6e13a7284f656bedcf74ca292ee41aec4969cf83069cef9db0e02afd0d0

Aliases

arxiv: 0904.4891 · arxiv_version: 0904.4891v3 · doi: 10.48550/arxiv.0904.4891 · pith_short_12: RF4PNYJ2OKCP · pith_short_16: RF4PNYJ2OKCPMVV6 · pith_short_8: RF4PNYJ2

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/RF4PNYJ2OKCPMVV63T3UZIUS5Z \
  | 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: 8978f6e13a7284f656bedcf74ca292ee41aec4969cf83069cef9db0e02afd0d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "396f73d4de14a12f75897f1bbc8b02b8c566d126653c73c38a5c42356f0b9f92",
    "cross_cats_sorted": [
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2009-04-30T17:20:08Z",
    "title_canon_sha256": "a2ca07b3d0a78bb7da2ef24b8b8edd6ea15b5a05564a356b0c8bf9d496542632"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4891",
    "kind": "arxiv",
    "version": 3
  }
}