Pith Number

pith:XI2PPOT7

pith:2018:XI2PPOT7P4S5CYN3RLV7OKDP5C

not attested not anchored not stored refs pending

Approximation Algorithms for Clustering via Weighted Impurity Measures

Eduardo Laber, Ferdinando Cicalese

arxiv:1807.05241 v1 · 2018-07-13 · 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{XI2PPOT7P4S5CYN3RLV7OKDP5C}

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	2026-05-18T00:10:44.037296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba34f7ba7f7f25d161bb8aebf7286fe8ad3366c7d595c39aae2d8fd837469af6

Aliases

arxiv: 1807.05241 · arxiv_version: 1807.05241v1 · doi: 10.48550/arxiv.1807.05241 · pith_short_12: XI2PPOT7P4S5 · pith_short_16: XI2PPOT7P4S5CYN3 · pith_short_8: XI2PPOT7

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/XI2PPOT7P4S5CYN3RLV7OKDP5C \
  | 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: ba34f7ba7f7f25d161bb8aebf7286fe8ad3366c7d595c39aae2d8fd837469af6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9280c4101e6b80e998566aebe7e184e7784dc30c0ab264f13b2230a7b5d0a91",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-07-13T18:14:11Z",
    "title_canon_sha256": "f78737c7df18098e3cb37400ca924008fdb24ba762ec1aab4154c22bbf06c742"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05241",
    "kind": "arxiv",
    "version": 1
  }
}