Pith Number

pith:PIQT3QVL

pith:2015:PIQT3QVL6AU7KD5RPEMGYIFDLY

not attested not anchored not stored refs pending

Multi-Level Restricted Maximum Likelihood Covariance Estimation and Kriging for Large Non-Gridded Spatial Datasets

Julio E. Castrillon-Candas, Marc G. Genton, Rio Yokota

arxiv:1504.00302 v2 · 2015-04-01 · 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{PIQT3QVL6AU7KD5RPEMGYIFDLY}

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	2026-05-18T01:18:14.687737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a213dc2abf029f50fb179186c20a35e1f8988931ca1d5f6592e06a3145a84b2

Aliases

arxiv: 1504.00302 · arxiv_version: 1504.00302v2 · doi: 10.48550/arxiv.1504.00302 · pith_short_12: PIQT3QVL6AU7 · pith_short_16: PIQT3QVL6AU7KD5R · pith_short_8: PIQT3QVL

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/PIQT3QVL6AU7KD5RPEMGYIFDLY \
  | 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: 7a213dc2abf029f50fb179186c20a35e1f8988931ca1d5f6592e06a3145a84b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56dde9f17a4f0e2e579beda99936dc743277eaf9b28fe18b7738507ef566d583",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2015-04-01T17:20:30Z",
    "title_canon_sha256": "2d4442e7405a888d20cc0af981b87870d84f0708621f766165376cf584712f3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00302",
    "kind": "arxiv",
    "version": 2
  }
}