Pith Number

pith:QNJTG3CQ

pith:2017:QNJTG3CQGIGUJS6WWFXKNZSIG3

not attested not anchored not stored refs pending

An initialization method for the k-means using the concept of useful nearest centers

Hassan Ismkhan

arxiv:1705.03613 v1 · 2017-05-10 · 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{QNJTG3CQGIGUJS6WWFXKNZSIG3}

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	2026-05-18T00:44:43.441240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8353336c50320d44cbd6b16ea6e64836d8a7f74feb8ad9109c2a91ae1da26c19

Aliases

arxiv: 1705.03613 · arxiv_version: 1705.03613v1 · doi: 10.48550/arxiv.1705.03613 · pith_short_12: QNJTG3CQGIGU · pith_short_16: QNJTG3CQGIGUJS6W · pith_short_8: QNJTG3CQ

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/QNJTG3CQGIGUJS6WWFXKNZSIG3 \
  | 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: 8353336c50320d44cbd6b16ea6e64836d8a7f74feb8ad9109c2a91ae1da26c19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3e5ecbcccaf8815d92ec45af4d8b128619baa2b87c6026833233867c240ab50",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2017-05-10T06:19:04Z",
    "title_canon_sha256": "f08d1bff5fe952aaa305eba0512b256f4f344a9ff24f6e5f185562e6c3fa956d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03613",
    "kind": "arxiv",
    "version": 1
  }
}