Pith Number

pith:RJTXVEPI

pith:2021:RJTXVEPIOEN5XF7WK4J77WOMNZ

not attested not anchored not stored refs pending

Accelerating Spherical k-Means

Andreas Lang, Erich Schubert, Gloria Feher

arxiv:2107.04074 v1 · 2021-07-08 · 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{RJTXVEPIOEN5XF7WK4J77WOMNZ}

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	2026-07-05T03:27:33.604329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a677a91e8711bdb97f65713ffd9cc6e563d611975c05733e74e7d3f8249d13d

Aliases

arxiv: 2107.04074 · arxiv_version: 2107.04074v1 · doi: 10.48550/arxiv.2107.04074 · pith_short_12: RJTXVEPIOEN5 · pith_short_16: RJTXVEPIOEN5XF7W · pith_short_8: RJTXVEPI

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/RJTXVEPIOEN5XF7WK4J77WOMNZ \
  | 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: 8a677a91e8711bdb97f65713ffd9cc6e563d611975c05733e74e7d3f8249d13d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfe9ad7d927dbd99e8c394441bda746e0288b3d2012b51cc46d04aaf5b55e2db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-07-08T19:24:09Z",
    "title_canon_sha256": "bba1ae7e65a1d1458e4545148016b300cca3b4ac7cd0d1b152e658a02b486465"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.04074",
    "kind": "arxiv",
    "version": 1
  }
}