Pith Number

pith:2UB6KZOQ

pith:2012:2UB6KZOQTHYQCMBTKUNS2LCK63

not attested not anchored not stored refs pending

A Model-Based Approach to Rounding in Spectral Clustering

April H. Liu, Leonard K. M. Poon, Nevin Lianwen Zhang, Tengfei Liu

arxiv:1210.4883 v1 · 2012-10-16 · cs.LG · cs.NA · 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{2UB6KZOQTHYQCMBTKUNS2LCK63}

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	2026-05-18T03:42:55.196817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d503e565d099f1013033551b2d2c4af6dfc57d3c77469acd0496558f65354741

Aliases

arxiv: 1210.4883 · arxiv_version: 1210.4883v1 · doi: 10.48550/arxiv.1210.4883 · pith_short_12: 2UB6KZOQTHYQ · pith_short_16: 2UB6KZOQTHYQCMBT · pith_short_8: 2UB6KZOQ

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/2UB6KZOQTHYQCMBTKUNS2LCK63 \
  | 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: d503e565d099f1013033551b2d2c4af6dfc57d3c77469acd0496558f65354741

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "970d4c7d0c1d47daf4cfbc2667d3bf023f441033afaceee3d4dec35e4091fa07",
    "cross_cats_sorted": [
      "cs.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-10-16T17:45:11Z",
    "title_canon_sha256": "192d733e4abcca641f49bf6c5e33757d3c18cd1fa3094287b4ab00557dcd0b3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4883",
    "kind": "arxiv",
    "version": 1
  }
}