Pith Number

pith:345Z5MIC

pith:2018:345Z5MICH23SGS5OITIPEWFLXO

not attested not anchored not stored refs pending

k-medoids and p-median clustering are solvable in polynomial time for a 2d Pareto front

El-Ghazali Talbi, Frank Nielsen, Nicolas Dupin

arxiv:1806.02098 v4 · 2018-06-06 · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{345Z5MICH23SGS5OITIPEWFLXO}

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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.

Cited by

1 paper in Pith

Planar p-center problems are solvable in polynomial time when clustering a Pareto Front

Receipt and verification

First computed	2026-07-05T01:04:44.363911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df3b9eb1023eb7234bae44d0f258abbb902e70503cc8a880be7c40658569d7c2

Aliases

arxiv: 1806.02098 · arxiv_version: 1806.02098v4 · doi: 10.48550/arxiv.1806.02098 · pith_short_12: 345Z5MICH23S · pith_short_16: 345Z5MICH23SGS5O · pith_short_8: 345Z5MIC

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/345Z5MICH23SGS5OITIPEWFLXO \
  | 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: df3b9eb1023eb7234bae44d0f258abbb902e70503cc8a880be7c40658569d7c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f6bf4cbe209bbf762a83dd253f01726610b600523088127a8bcf386e4f59f63",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2018-06-06T10:24:07Z",
    "title_canon_sha256": "7daebb85d12e29b11d5c5e25adb2b39b476e7292c1d6d207d94aa77a9e0d4bcd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.02098",
    "kind": "arxiv",
    "version": 4
  }
}