Pith Number

pith:CQF7L5WK

pith:2013:CQF7L5WKT6X5SODWEBCNJFWBF7

not attested not anchored not stored refs pending

Centrality of Trees for Capacitated k-Center

Aditya Bhaskara, Hyung-Chan An, Ola Svensson

arxiv:1304.2983 v1 · 2013-04-10 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CQF7L5WKT6X5SODWEBCNJFWBF7}

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	2026-05-18T03:28:20.222895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

140bf5f6ca9fafd938762044d496c12fe430e113fe8b0e7c2406aa0833ec3443

Aliases

arxiv: 1304.2983 · arxiv_version: 1304.2983v1 · doi: 10.48550/arxiv.1304.2983 · pith_short_12: CQF7L5WKT6X5 · pith_short_16: CQF7L5WKT6X5SODW · pith_short_8: CQF7L5WK

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/CQF7L5WKT6X5SODWEBCNJFWBF7 \
  | 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: 140bf5f6ca9fafd938762044d496c12fe430e113fe8b0e7c2406aa0833ec3443

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "342e3360012a39a146cad00587c60dc8402ca85b528d2903e628c437723b5486",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-04-10T14:50:12Z",
    "title_canon_sha256": "a0150d814597371341b147f26d92aaabc90fb2ca6b420546e71e03235f33b732"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2983",
    "kind": "arxiv",
    "version": 1
  }
}