Pith Number

pith:FPX63W5T

pith:2022:FPX63W5TUHBSTVRDQFMRUWAAO3

not attested not anchored not stored refs pending

Sparse Gaussian Process Hyperparameters: Optimize or Integrate?

Carl E. Rasmussen, David R. Burt, Vidhi Lalchand, Wessel P. Bruinsma

arxiv:2211.02476 v1 · 2022-11-04 · stat.ML · cs.LG · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPX63W5TUHBSTVRDQFMRUWAAO3}

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	2026-07-05T05:13:15.928931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2befeddbb3a1c329d62381591a580076f5a9f87f8161cda060f64c4fc3841f10

Aliases

arxiv: 2211.02476 · arxiv_version: 2211.02476v1 · doi: 10.48550/arxiv.2211.02476 · pith_short_12: FPX63W5TUHBS · pith_short_16: FPX63W5TUHBSTVRD · pith_short_8: FPX63W5T

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/FPX63W5TUHBSTVRDQFMRUWAAO3 \
  | 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: 2befeddbb3a1c329d62381591a580076f5a9f87f8161cda060f64c4fc3841f10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff0d2dbdea08b370cec3d699372e913bebad1d5c22f3d49818829466648ca80d",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ME"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2022-11-04T14:06:59Z",
    "title_canon_sha256": "c38cd02a975fc1e8ec0db75560919e4f52cf837c251795894a3598ec9dd14835"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.02476",
    "kind": "arxiv",
    "version": 1
  }
}