Pith Number

pith:QLZ2TR3F

pith:2021:QLZ2TR3FBCZQWVJQM7AFKLJS32

not attested not anchored not stored refs pending

Correlation-based sparse inverse Cholesky factorization for fast Gaussian-process inference

Matthias Katzfuss, Myeongjong Kang

arxiv:2112.14591 v2 · 2021-12-29 · stat.CO · 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{QLZ2TR3FBCZQWVJQM7AFKLJS32}

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.

Cited by

1 paper in Pith

A review of regularised estimation methods and cross-validation in spatiotemporal statistics

Receipt and verification

First computed	2026-07-05T05:59:01.875797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82f3a9c76508b30b553067c0552d32de87d8478944c8fa6e495e8d2865307141

Aliases

arxiv: 2112.14591 · arxiv_version: 2112.14591v2 · doi: 10.48550/arxiv.2112.14591 · pith_short_12: QLZ2TR3FBCZQ · pith_short_16: QLZ2TR3FBCZQWVJQ · pith_short_8: QLZ2TR3F

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/QLZ2TR3FBCZQWVJQM7AFKLJS32 \
  | 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: 82f3a9c76508b30b553067c0552d32de87d8478944c8fa6e495e8d2865307141

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d48b9a814c1cd87a862c78e8558df7b7e411554583744bb88f88e76c9c014f6b",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2021-12-29T15:04:16Z",
    "title_canon_sha256": "bce981b87e93ab4dd516d40c1d78cdfa7f91afcc5e2cd817878124d647384adc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.14591",
    "kind": "arxiv",
    "version": 2
  }
}