Pith Number

pith:N7Y5QTS7

pith:2025:N7Y5QTS7DC3BJVDRNBTOYO3ZG4

not attested not anchored not stored refs pending

Fast kernel methods: Sobolev, physics-informed, and additive models

Claire Boyer (LMO), EDF R&D OSIRIS), Francis Bach (ENS-PSL), G\'erard Biau (LPSM, IUF), Nathan Doum\`eche (LPSM

arxiv:2509.02649 v1 · 2025-09-02 · stat.ML · cs.LG · math.ST · stat.ME · 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{N7Y5QTS7DC3BJVDRNBTOYO3ZG4}

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	2026-07-05T12:03:54.842679Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ff1d84e5f18b614d4716866ec3b79372b11aa508c47d8c28d9155588cc6b624

Aliases

arxiv: 2509.02649 · arxiv_version: 2509.02649v1 · doi: 10.48550/arxiv.2509.02649 · pith_short_12: N7Y5QTS7DC3B · pith_short_16: N7Y5QTS7DC3BJVDR · pith_short_8: N7Y5QTS7

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/N7Y5QTS7DC3BJVDRNBTOYO3ZG4 \
  | 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: 6ff1d84e5f18b614d4716866ec3b79372b11aa508c47d8c28d9155588cc6b624

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a671fbd413bbfb9829403c0eccff8356a05c868f5fb29c2defe96eb6ca922d0d",
    "cross_cats_sorted": [
      "cs.LG",
      "math.ST",
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2025-09-02T12:07:48Z",
    "title_canon_sha256": "f74b3ddc7cc09a96d9b8b28f8653d930368600fb8242a11bd498fc8d7ca28d44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.02649",
    "kind": "arxiv",
    "version": 1
  }
}