Pith Number

pith:K565H2MU

pith:2014:K565H2MUYIPH7PIUP33CONNGNP

not attested not anchored not stored refs pending

The Hidden Convexity of Spectral Clustering

James Voss, Luis Rademacher, Mikhail Belkin

arxiv:1403.0667 v3 · 2014-03-04 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K565H2MUYIPH7PIUP33CONNGNP}

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	2026-05-18T01:15:39.182474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

577dd3e994c21e7fbd147ef62735a66bd174507a2e4bac3f070f7c88a9f8794d

Aliases

arxiv: 1403.0667 · arxiv_version: 1403.0667v3 · doi: 10.48550/arxiv.1403.0667 · pith_short_12: K565H2MUYIPH · pith_short_16: K565H2MUYIPH7PIU · pith_short_8: K565H2MU

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/K565H2MUYIPH7PIUP33CONNGNP \
  | 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: 577dd3e994c21e7fbd147ef62735a66bd174507a2e4bac3f070f7c88a9f8794d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7073d0235343f17542256e8a05c67425366de99b2b0bee29ffcb25a7afe61905",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2014-03-04T02:48:20Z",
    "title_canon_sha256": "33e2f29fc1d1d099e6920e93e90a5fd10efed277387bc8f71d44aa0ce194a1d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.0667",
    "kind": "arxiv",
    "version": 3
  }
}