Pith Number

pith:6PNERCWP

pith:2013:6PNERCWPNJIMS6BKWBQPIPUEAM

not attested not anchored not stored refs pending

Splitting Methods for Convex Clustering

Eric C. Chi, Kenneth Lange

arxiv:1304.0499 v2 · 2013-04-01 · stat.ML · math.NA · math.OC · stat.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6PNERCWPNJIMS6BKWBQPIPUEAM}

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	2026-05-18T01:24:33.481389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3da488acf6a50c9782ab060f43e8403040020f509bbbf171c51ab6d4c03739a

Aliases

arxiv: 1304.0499 · arxiv_version: 1304.0499v2 · doi: 10.48550/arxiv.1304.0499 · pith_short_12: 6PNERCWPNJIM · pith_short_16: 6PNERCWPNJIMS6BK · pith_short_8: 6PNERCWP

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/6PNERCWPNJIMS6BKWBQPIPUEAM \
  | 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: f3da488acf6a50c9782ab060f43e8403040020f509bbbf171c51ab6d4c03739a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "719cada81934f9a56ad815c2fa868d4aa919dd740484b40f0750ee886498a579",
    "cross_cats_sorted": [
      "math.NA",
      "math.OC",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2013-04-01T23:37:20Z",
    "title_canon_sha256": "1a6921ca5ab6f5d71b48b447c895fa2174e8cd884b31303e8ef1788a3d2a707f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0499",
    "kind": "arxiv",
    "version": 2
  }
}