Pith Number

pith:E7ZELRBV

pith:2017:E7ZELRBVIDZOF6CM6XWEHOCSK5

not attested not anchored not stored refs pending

Hierarchical Clustering: Objective Functions and Algorithms

Claire Mathieu, Frederik Mallmann-Trenn, Varun Kanade, Vincent Cohen-Addad

arxiv:1704.02147 v1 · 2017-04-07 · cs.DS · 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{E7ZELRBVIDZOF6CM6XWEHOCSK5}

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	2026-05-18T00:46:50.594773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27f245c43540f2e2f84cf5ec43b852576273806bbc319869e44a7385c8c41e34

Aliases

arxiv: 1704.02147 · arxiv_version: 1704.02147v1 · doi: 10.48550/arxiv.1704.02147 · pith_short_12: E7ZELRBVIDZO · pith_short_16: E7ZELRBVIDZOF6CM · pith_short_8: E7ZELRBV

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/E7ZELRBVIDZOF6CM6XWEHOCSK5 \
  | 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: 27f245c43540f2e2f84cf5ec43b852576273806bbc319869e44a7385c8c41e34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f34440251b1612c04e9c485517fcd2fbf3d36fc219ca9ee2b67e8e3e34e433be",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-04-07T09:14:28Z",
    "title_canon_sha256": "d9a48c92f60069d035bad1bfa10509aabaa0445aa83b18d2c7f75f1ce6b6fafd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.02147",
    "kind": "arxiv",
    "version": 1
  }
}