Pith Number

pith:D4XZGEMW

pith:2014:D4XZGEMWEPRVFKDB6K2G2S34UI

not attested not anchored not stored refs pending

Fast Direct Methods for Gaussian Processes

Daniel Foreman-Mackey, David W. Hogg, Leslie Greengard, Michael O'Neil, Sivaram Ambikasaran

arxiv:1403.6015 v2 · 2014-03-24 · math.NA · astro-ph.IM · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D4XZGEMWEPRVFKDB6K2G2S34UI}

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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

Replacing Gaussian Processes with Neural Networks in Pulsar Timing Array Inference of the Gravitational-Wave Background

Receipt and verification

First computed	2026-05-18T02:19:36.251006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f2f93119623e352a861f2b46d4b7ca215f363fccf09e852ac6abe9dc6e5501d

Aliases

arxiv: 1403.6015 · arxiv_version: 1403.6015v2 · doi: 10.48550/arxiv.1403.6015 · pith_short_12: D4XZGEMWEPRV · pith_short_16: D4XZGEMWEPRVFKDB · pith_short_8: D4XZGEMW

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/D4XZGEMWEPRVFKDB6K2G2S34UI \
  | 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: 1f2f93119623e352a861f2b46d4b7ca215f363fccf09e852ac6abe9dc6e5501d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1438e0f6794836368a3cf0e7c22e0f67c7d8ed534a03d5395511012ed1ba19e",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-03-24T16:02:01Z",
    "title_canon_sha256": "9f352eb17e76a4554c79eee71478fd6e7c8f7dbbd7bb8fc81ba7e885909710df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6015",
    "kind": "arxiv",
    "version": 2
  }
}