Pith Number

pith:2VTYLT65

pith:2014:2VTYLT65ZOHSF6FUJ2QW75RKDJ

not attested not anchored not stored refs pending

A Convex Formulation for Spectral Shrunk Clustering

Feiping Nie, Xiaofang Zhou, Xiaojun Chang, Yi Yang, Zhigang Ma

arxiv:1411.6308 v1 · 2014-11-23 · 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{2VTYLT65ZOHSF6FUJ2QW75RKDJ}

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	2026-05-18T02:33:00.319618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d56785cfddcb8f22f8b44ea16ff62a1a7b376431695127fbc7132f29852fdfb9

Aliases

arxiv: 1411.6308 · arxiv_version: 1411.6308v1 · doi: 10.48550/arxiv.1411.6308 · pith_short_12: 2VTYLT65ZOHS · pith_short_16: 2VTYLT65ZOHSF6FU · pith_short_8: 2VTYLT65

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/2VTYLT65ZOHSF6FUJ2QW75RKDJ \
  | 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: d56785cfddcb8f22f8b44ea16ff62a1a7b376431695127fbc7132f29852fdfb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6e4c1308646bf2653994a5483be6c08cfa013e63e8c8a948592d9f15dfee65f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2014-11-23T22:12:52Z",
    "title_canon_sha256": "ba77f8b515bc70a9027611d66ff5b99807e8642a25a8d3b8fd80e7168c2253a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.6308",
    "kind": "arxiv",
    "version": 1
  }
}