Pith Number

pith:XMEVKNF4

pith:2016:XMEVKNF4N5NFU6M3HOM2MUKJR7

not attested not anchored not stored refs pending

P-splines with derivative based penalties and tensor product smoothing of unevenly distributed data

Simon N. Wood

arxiv:1605.02446 v1 · 2016-05-09 · 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{XMEVKNF4N5NFU6M3HOM2MUKJR7}

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	2026-05-18T01:15:20.923208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb095534bc6f5a5a799b3b99a651498fcee01e5c67d0f7b72653a08929af546e

Aliases

arxiv: 1605.02446 · arxiv_version: 1605.02446v1 · doi: 10.48550/arxiv.1605.02446 · pith_short_12: XMEVKNF4N5NF · pith_short_16: XMEVKNF4N5NFU6M3 · pith_short_8: XMEVKNF4

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/XMEVKNF4N5NFU6M3HOM2MUKJR7 \
  | 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: bb095534bc6f5a5a799b3b99a651498fcee01e5c67d0f7b72653a08929af546e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82e1fc78dc1b92bfc878970d92432f85de6fa6daa50e09d798618999a4b5832a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2016-05-09T07:26:11Z",
    "title_canon_sha256": "1cf7b3f475f3ed0e056f32830ca3eea8db42bf7141ca6b64c57c75c2ab434d9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02446",
    "kind": "arxiv",
    "version": 1
  }
}