Pith Number

pith:YD2UNUOC

pith:2019:YD2UNUOC5D2VXNG34PVTNVKYTT

not attested not anchored not stored refs pending

Greedy Strategy Works for $k$-Center Clustering with Outliers and Coreset Construction

Haikuo Yu, Hu Ding, Zixiu Wang

arxiv:1901.08219 v2 · 2019-01-24 · cs.CG · 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{YD2UNUOC5D2VXNG34PVTNVKYTT}

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	2026-05-17T23:47:39.461152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0f546d1c2e8f55bb4dbe3eb36d5589cc633b245e6452b34414331f69ead163e

Aliases

arxiv: 1901.08219 · arxiv_version: 1901.08219v2 · doi: 10.48550/arxiv.1901.08219 · pith_short_12: YD2UNUOC5D2V · pith_short_16: YD2UNUOC5D2VXNG3 · pith_short_8: YD2UNUOC

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/YD2UNUOC5D2VXNG34PVTNVKYTT \
  | 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: c0f546d1c2e8f55bb4dbe3eb36d5589cc633b245e6452b34414331f69ead163e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d5334dfdc9ea4dd2654d753587e5643e760541f77c4ca805cf4226b14c9ccfe",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-01-24T03:45:54Z",
    "title_canon_sha256": "70f7f77fce40e3f578f6e8f7eba56ec85cd2a40bc6d41aad65a7dfe5133e7567"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08219",
    "kind": "arxiv",
    "version": 2
  }
}