Pith Number

pith:2ZZUTFAR

pith:2015:2ZZUTFAR5BM2USJQH65LWSCABV

not attested not anchored not stored refs pending

Incremental Method for Spectral Clustering of Increasing Orders

Alfred O. Hero, Baichuan Zhang, Mohammad Al Hasan, Pin-Yu Chen

arxiv:1512.07349 v4 · 2015-12-23 · cs.SI · 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{2ZZUTFAR5BM2USJQH65LWSCABV}

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	2026-05-18T00:25:21.548725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d673499411e859aa49303fbabb48400d407929f5f2de8a3cc3756468554ad237

Aliases

arxiv: 1512.07349 · arxiv_version: 1512.07349v4 · doi: 10.48550/arxiv.1512.07349 · pith_short_12: 2ZZUTFAR5BM2 · pith_short_16: 2ZZUTFAR5BM2USJQ · pith_short_8: 2ZZUTFAR

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/2ZZUTFAR5BM2USJQH65LWSCABV \
  | 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: d673499411e859aa49303fbabb48400d407929f5f2de8a3cc3756468554ad237

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4cb3e43247909417cf078ca4ce5eb7f30d4fd1b7f590d2ec24f543e88ed2bb9",
    "cross_cats_sorted": [
      "cs.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2015-12-23T03:55:24Z",
    "title_canon_sha256": "46a41b3c38d98e1a2e47dad47a0f7c05583f6354b8fd7a71b60721b481b3b353"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.07349",
    "kind": "arxiv",
    "version": 4
  }
}