Pith Number

pith:L4HK2U2X

pith:2014:L4HK2U2X5R46IBPPZWCLPXY7GG

not attested not anchored not stored refs pending

An Improved Approximation Algorithm for the Hard Uniform Capacitated k-median Problem

Shanfei Li

arxiv:1406.4454 v1 · 2014-06-17 · cs.DS · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L4HK2U2X5R46IBPPZWCLPXY7GG}

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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	2026-05-18T02:49:32.023205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f0ead5357ec79e405efcd84b7df1f318112802d5ef8f96605708925a6bb35f3

Aliases

arxiv: 1406.4454 · arxiv_version: 1406.4454v1 · doi: 10.48550/arxiv.1406.4454 · pith_short_12: L4HK2U2X5R46 · pith_short_16: L4HK2U2X5R46IBPP · pith_short_8: L4HK2U2X

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/L4HK2U2X5R46IBPPZWCLPXY7GG \
  | 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: 5f0ead5357ec79e405efcd84b7df1f318112802d5ef8f96605708925a6bb35f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "160916387f27d26a75ac75d0c4c1689629ad0cdc5e0ad7040577bfcaff0d5a93",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-06-17T18:00:48Z",
    "title_canon_sha256": "ddfc99eec975089f3612a7790103e72ba31a24c2fc645294135e6a4922e52667"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4454",
    "kind": "arxiv",
    "version": 1
  }
}