Pith Number

pith:G25NMA3M

pith:2020:G25NMA3MG3A5XEWX6GPQJ4YYCY

not attested not anchored not stored refs pending

Stratified incomplete local simplex tests for curvature of nonparametric multiple regression

Kengo Kato, Xiaohui Chen, Yanglei Song

arxiv:2003.09091 v4 · 2020-03-20 · math.ST · 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{G25NMA3MG3A5XEWX6GPQJ4YYCY}

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	2026-07-05T05:06:26.983786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36bad6036c36c1db92d7f19f04f318162f34c0fcd6a5f400ba3bc49a7dacd719

Aliases

arxiv: 2003.09091 · arxiv_version: 2003.09091v4 · doi: 10.48550/arxiv.2003.09091 · pith_short_12: G25NMA3MG3A5 · pith_short_16: G25NMA3MG3A5XEWX · pith_short_8: G25NMA3M

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/G25NMA3MG3A5XEWX6GPQJ4YYCY \
  | 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: 36bad6036c36c1db92d7f19f04f318162f34c0fcd6a5f400ba3bc49a7dacd719

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0013c115d82a53d176231ce23a922abf3027c2b52ac088b3ed1981ffebb817d4",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2020-03-20T03:39:52Z",
    "title_canon_sha256": "ae88318bcb450500940afc5f235b3556c0b25d4c8244002cfe33292672300982"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.09091",
    "kind": "arxiv",
    "version": 4
  }
}