Pith Number

pith:UW32MTGO

pith:2018:UW32MTGOGWHFPXZKKIVYPUEHML

not attested not anchored not stored refs pending

Blended smoothing splines on Riemannian manifolds

Estelle Massart, P.-A. Absil, Pierre-Yves Gousenbourger

arxiv:1812.04420 v1 · 2018-12-11 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UW32MTGOGWHFPXZKKIVYPUEHML}

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	2026-05-17T23:58:32.209611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5b7a64cce358e57df2a522b87d08762c327e543e57401e0bdd505b9ee101e37

Aliases

arxiv: 1812.04420 · arxiv_version: 1812.04420v1 · doi: 10.48550/arxiv.1812.04420 · pith_short_12: UW32MTGOGWHF · pith_short_16: UW32MTGOGWHFPXZK · pith_short_8: UW32MTGO

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/UW32MTGOGWHFPXZKKIVYPUEHML \
  | 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: a5b7a64cce358e57df2a522b87d08762c327e543e57401e0bdd505b9ee101e37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7306ab4987bfd3ff3f3c83cede706bec6ab33a454b70a76fa8c9dbdca942f5e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-12-11T14:19:16Z",
    "title_canon_sha256": "4427926ae37f10e6d246214959b7f92b9bf19e7d2e8b95a79418bc0099aa3bef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04420",
    "kind": "arxiv",
    "version": 1
  }
}