Pith Number

pith:QRHM7JWH

pith:2026:QRHM7JWHGWQTRQLSFOYJ5TMWSL

not attested not anchored not stored refs pending

Automatic knot selection in smooth additive models

Mar\'ia Durb\'an, Nicol\'as Carrizosa, Vanesa Guerrero

arxiv:2607.21083 v1 · 2026-07-23 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRHM7JWHGWQTRQLSFOYJ5TMWSL}

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	2026-07-24T01:23:50.977927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

844ecfa6c735a138c1722bb09ecd9692f055cf3e44d026dd930493713028c8d3

Aliases

arxiv: 2607.21083 · arxiv_version: 2607.21083v1 · doi: 10.48550/arxiv.2607.21083 · pith_short_12: QRHM7JWHGWQT · pith_short_16: QRHM7JWHGWQTRQLS · pith_short_8: QRHM7JWH

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/QRHM7JWHGWQTRQLSFOYJ5TMWSL \
  | 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: 844ecfa6c735a138c1722bb09ecd9692f055cf3e44d026dd930493713028c8d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27b9b7d30e25aa36d1229a9b47d3c9c9c8db68e20741118c8d3a75dd7905fb01",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-07-23T09:12:41Z",
    "title_canon_sha256": "87c5c196d5431ca63f351dc0f9f62e9c35e304f1fd89f0bfd7af8d254d6acd07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21083",
    "kind": "arxiv",
    "version": 1
  }
}