Pith Number

pith:6SQHYKXM

pith:2014:6SQHYKXMPHIX4XCXVN2VANFL3E

not attested not anchored not stored refs pending

Efficient Semidefinite Spectral Clustering via Lagrange Duality

Chunhua Shen, Hanzi Wang, Yan Yan

arxiv:1402.5497 v1 · 2014-02-22 · cs.LG · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6SQHYKXMPHIX4XCXVN2VANFL3E}

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	2026-05-18T02:58:20.951249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4a07c2aec79d17e5c57ab755034abd93b4f1c032aa6bb168cf485617fce45ae

Aliases

arxiv: 1402.5497 · arxiv_version: 1402.5497v1 · doi: 10.48550/arxiv.1402.5497 · pith_short_12: 6SQHYKXMPHIX · pith_short_16: 6SQHYKXMPHIX4XCX · pith_short_8: 6SQHYKXM

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/6SQHYKXMPHIX4XCXVN2VANFL3E \
  | 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: f4a07c2aec79d17e5c57ab755034abd93b4f1c032aa6bb168cf485617fce45ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "617dbbde7e5c97e654d7315706bdfc52e1f81c38b22fccaf4c758a2d67454223",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2014-02-22T09:39:52Z",
    "title_canon_sha256": "79557526e4438930a8c21143673fb63f820a9d704ca75dd7b3fda9983e31a02d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.5497",
    "kind": "arxiv",
    "version": 1
  }
}