Pith Number

pith:U6SKTFMI

pith:2016:U6SKTFMI7KMJSV42YQGPOP6TSS

not attested not anchored not stored refs pending

Recovering the number of clusters in data sets with noise features using feature rescaling factors

Christian Hennig, Renato Cordeiro de Amorim

arxiv:1602.06989 v1 · 2016-02-22 · 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{U6SKTFMI7KMJSV42YQGPOP6TSS}

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	2026-05-18T01:20:07.473175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7a4a99588fa9899579ac40cf73fd394932e4937732b056ba8d22a452c571d4d

Aliases

arxiv: 1602.06989 · arxiv_version: 1602.06989v1 · doi: 10.48550/arxiv.1602.06989 · pith_short_12: U6SKTFMI7KMJ · pith_short_16: U6SKTFMI7KMJSV42 · pith_short_8: U6SKTFMI

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/U6SKTFMI7KMJSV42YQGPOP6TSS \
  | 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: a7a4a99588fa9899579ac40cf73fd394932e4937732b056ba8d22a452c571d4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26f7658f9ad959dcd61e8b29c7cb1c4f0394f52391f77cc3bdd6058635500ea2",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2016-02-22T22:40:00Z",
    "title_canon_sha256": "d697418de04964d073951b2912821403332131d12dd6ba68496cd5b5f8abab91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06989",
    "kind": "arxiv",
    "version": 1
  }
}