Pith Number

pith:6SKX3ELX

pith:2011:6SKX3ELXYZKMIK7SXIV3FEPCXR

not attested not anchored not stored refs pending

Deterministic Feature Selection for $k$-means Clustering

Christos Boutsidis, Malik Magdon-Ismail

arxiv:1109.5664 v4 · 2011-09-26 · cs.LG · 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{6SKX3ELXYZKMIK7SXIV3FEPCXR}

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	2026-05-18T00:58:43.326599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4957d9177c654c42bf2ba2bb291e2bc668599bb17ec74996c21493f505e63a6

Aliases

arxiv: 1109.5664 · arxiv_version: 1109.5664v4 · doi: 10.48550/arxiv.1109.5664 · pith_short_12: 6SKX3ELXYZKM · pith_short_16: 6SKX3ELXYZKMIK7S · pith_short_8: 6SKX3ELX

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/6SKX3ELXYZKMIK7SXIV3FEPCXR \
  | 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: f4957d9177c654c42bf2ba2bb291e2bc668599bb17ec74996c21493f505e63a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da3676aec94b972f9ce3a76fffd7da183053aa7ce46db9f9646454c2355cd908",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2011-09-26T18:44:00Z",
    "title_canon_sha256": "2053e3845733ca0df55c6ad4562ea2135309c87db4ac88fedbf39f7786e396bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5664",
    "kind": "arxiv",
    "version": 4
  }
}