Pith Number

pith:OIVXGZKQ

pith:2019:OIVXGZKQSW2UJDP2QMFBH2REHT

not attested not anchored not stored refs pending

Accurate MapReduce Algorithms for $k$-median and $k$-means in General Metric Spaces

Alessio Mazzetto, Andrea Pietracaprina, Geppino Pucci

arxiv:1904.12728 v2 · 2019-04-29 · cs.DC · 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{OIVXGZKQSW2UJDP2QMFBH2REHT}

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	2026-07-05T00:08:05.227254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

722b73655095b5448dfa830a13ea243cd9407cfd04b9101ef0667dfdf925dbf8

Aliases

arxiv: 1904.12728 · arxiv_version: 1904.12728v2 · doi: 10.48550/arxiv.1904.12728 · pith_short_12: OIVXGZKQSW2U · pith_short_16: OIVXGZKQSW2UJDP2 · pith_short_8: OIVXGZKQ

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/OIVXGZKQSW2UJDP2QMFBH2REHT \
  | 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: 722b73655095b5448dfa830a13ea243cd9407cfd04b9101ef0667dfdf925dbf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "370e81b19a7bdbc198a00d16b7ae1c5f5150cc5f89800888ef9c35b130de5c09",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2019-04-29T14:12:15Z",
    "title_canon_sha256": "f09a9a8a803f5413d145811caedc92e595addc71cc0e672479fe5dc0633f2ec0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.12728",
    "kind": "arxiv",
    "version": 2
  }
}