Pith Number

pith:W3U7KCOQ

pith:2020:W3U7KCOQ6UPJGWIM4MN6CEJH2P

not attested not anchored not stored refs pending

Scaled Vecchia approximation for fast computer-model emulation

Earl Lawrence, Joseph Guinness, Matthias Katzfuss

arxiv:2005.00386 v4 · 2020-05-01 · stat.ME · stat.CO · 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{W3U7KCOQ6UPJGWIM4MN6CEJH2P}

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	2026-07-05T02:59:02.132880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6e9f509d0f51e93590ce31be11127d3d983d35e3546a1a3a6da25ec9a59d8a8

Aliases

arxiv: 2005.00386 · arxiv_version: 2005.00386v4 · doi: 10.48550/arxiv.2005.00386 · pith_short_12: W3U7KCOQ6UPJ · pith_short_16: W3U7KCOQ6UPJGWIM · pith_short_8: W3U7KCOQ

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/W3U7KCOQ6UPJGWIM4MN6CEJH2P \
  | 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: b6e9f509d0f51e93590ce31be11127d3d983d35e3546a1a3a6da25ec9a59d8a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84883d707883b834b9cac0d050b0e99007fa52cea5e010f5aeb0861799993d19",
    "cross_cats_sorted": [
      "stat.CO",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2020-05-01T14:08:31Z",
    "title_canon_sha256": "b79d040a5a58ed257e595c3954f8dd5542fee871ce64ebc3c09643061351dece"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.00386",
    "kind": "arxiv",
    "version": 4
  }
}