Pith Number

pith:4WZV3HPP

pith:2006:4WZV3HPPQB73B7XJSEGSVH3NDB

not attested not anchored not stored refs pending

A New Quartet Tree Heuristic for Hierarchical Clustering

Paul M.B. Vitanyi, Rudi Cilibrasi

arxiv:cs/0606048 v1 · 2006-06-11 · cs.DS · cs.CV · cs.DM · math.ST · physics.data-an · q-bio.QM · 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{4WZV3HPPQB73B7XJSEGSVH3NDB}

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	2026-05-18T04:08:54.047938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5b35d9def807fb0fee9910d2a9f6d1868822bacd6f487911bbbdfe235a8a26a

Aliases

arxiv: cs/0606048 · arxiv_version: cs/0606048v1 · doi: 10.48550/arxiv.cs/0606048 · pith_short_12: 4WZV3HPPQB73 · pith_short_16: 4WZV3HPPQB73B7XJ · pith_short_8: 4WZV3HPP

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/4WZV3HPPQB73B7XJSEGSVH3NDB \
  | 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: e5b35d9def807fb0fee9910d2a9f6d1868822bacd6f487911bbbdfe235a8a26a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6baa82a6d7e8f8fa9dbf2f0c8969a8a1dda23bad23619eaf29e318a77576d125",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.DM",
      "math.ST",
      "physics.data-an",
      "q-bio.QM",
      "stat.TH"
    ],
    "license": "",
    "primary_cat": "cs.DS",
    "submitted_at": "2006-06-11T16:05:51Z",
    "title_canon_sha256": "1b8816ba1a232c18dbfcdd62b8cda076bb0269eb74668a98f279dd938fcc69bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0606048",
    "kind": "arxiv",
    "version": 1
  }
}