Pith Number

pith:E7MMA7CQ

pith:2019:E7MMA7CQDURCUDX65SMVN2R6ED

not attested not anchored not stored refs pending

A constant FPT approximation algorithm for hard-capacitated k-means

Dachuan Xu, Rolf H. M\"ohring, Yicheng Xu, Yifei Zou, Yong Zhang

arxiv:1901.04628 v3 · 2019-01-15 · cs.DS · cs.DM

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\usepackage{pith}
\pithnumber{E7MMA7CQDURCUDX65SMVN2R6ED}

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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

On Tight FPT Time Approximation Algorithms for k-Clustering Problems

Receipt and verification

First computed	2026-05-17T23:47:26.600409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27d8c07c501d222a0efeec9956ea3e20f096c02d65e90706c1aaef3c7a9b1268

Aliases

arxiv: 1901.04628 · arxiv_version: 1901.04628v3 · doi: 10.48550/arxiv.1901.04628 · pith_short_12: E7MMA7CQDURC · pith_short_16: E7MMA7CQDURCUDX6 · pith_short_8: E7MMA7CQ

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/E7MMA7CQDURCUDX65SMVN2R6ED \
  | 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: 27d8c07c501d222a0efeec9956ea3e20f096c02d65e90706c1aaef3c7a9b1268

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53b37ed56edc587de299b3c0d4b2a515184b64f03c59ba3b78b0ca8d6305dba0",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-01-15T01:30:19Z",
    "title_canon_sha256": "9b4d9f23e3326c2f288b95f2d6baab330be06123d3bbce1a2ac2697448c7a630"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04628",
    "kind": "arxiv",
    "version": 3
  }
}