Pith Number

pith:N3ZUWUGL

pith:2009:N3ZUWUGLDL3KBLVEJYT6I6CZEK

not attested not anchored not stored refs pending

Segmentation of the mean of heteroscedastic data via cross-validation

Alain Celisse, Sylvain Arlot (LIENS)

arxiv:0902.3977 v2 · 2009-02-23 · stat.ME · 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{N3ZUWUGLDL3KBLVEJYT6I6CZEK}

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	2026-05-18T04:30:26.693059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ef34b50cb1af6a0aea44e27e47859229667c4697f528cb0910cbad2a7abb869

Aliases

arxiv: 0902.3977 · arxiv_version: 0902.3977v2 · doi: 10.48550/arxiv.0902.3977 · pith_short_12: N3ZUWUGLDL3K · pith_short_16: N3ZUWUGLDL3KBLVE · pith_short_8: N3ZUWUGL

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/N3ZUWUGLDL3KBLVEJYT6I6CZEK \
  | 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: 6ef34b50cb1af6a0aea44e27e47859229667c4697f528cb0910cbad2a7abb869

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b42381907fc1b3af578a99d5959f613f7732e6bb98236cb389efe9846f0aeda4",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2009-02-23T19:27:48Z",
    "title_canon_sha256": "66dd022f2534d3d0d5d73ddc73dce846f6678add7f34f1155924b7898c25367a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.3977",
    "kind": "arxiv",
    "version": 2
  }
}