Pith Number

pith:ED7QE3QR

pith:2013:ED7QE3QRB27QD7KMPLARVLPIAM

not attested not anchored not stored refs pending

GPfit: An R package for Gaussian Process Model Fitting using a New Optimization Algorithm

Blake MacDonald, Hugh Chipman, Pritam Ranjan

arxiv:1305.0759 v1 · 2013-05-03 · 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{ED7QE3QRB27QD7KMPLARVLPIAM}

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	2026-05-18T01:26:32.112583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20ff026e110ebf01fd4c7ac11aade803138a3ca03999fdc0ca70312abd416ee0

Aliases

arxiv: 1305.0759 · arxiv_version: 1305.0759v1 · doi: 10.48550/arxiv.1305.0759 · pith_short_12: ED7QE3QRB27Q · pith_short_16: ED7QE3QRB27QD7KM · pith_short_8: ED7QE3QR

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/ED7QE3QRB27QD7KMPLARVLPIAM \
  | 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: 20ff026e110ebf01fd4c7ac11aade803138a3ca03999fdc0ca70312abd416ee0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00f391cf95f02d84506d2baaf85c2909e03af4ab407beb5ed04e09aec1ce31fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2013-05-03T15:57:49Z",
    "title_canon_sha256": "9e25e4763bafd96dc60b7f023139cdc512c9115fc11fbbd6fbaac0e56842b540"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0759",
    "kind": "arxiv",
    "version": 1
  }
}