Pith Number

pith:GFZPUYYY

pith:2017:GFZPUYYYMY4QZI23YAWAN3UJOA

not attested not anchored not stored refs pending

Towards Scalable Spectral Clustering via Spectrum-Preserving Sparsification

Yongyu Wang, Zhuo Feng

arxiv:1710.04584 v4 · 2017-10-12 · cs.LG · cs.AI · 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{GFZPUYYYMY4QZI23YAWAN3UJOA}

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	2026-05-18T00:03:37.218061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3172fa631866390ca35bc02c06ee897020c3ad734fa3fea4edebbf2d82c450ac

Aliases

arxiv: 1710.04584 · arxiv_version: 1710.04584v4 · doi: 10.48550/arxiv.1710.04584 · pith_short_12: GFZPUYYYMY4Q · pith_short_16: GFZPUYYYMY4QZI23 · pith_short_8: GFZPUYYY

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/GFZPUYYYMY4QZI23YAWAN3UJOA \
  | 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: 3172fa631866390ca35bc02c06ee897020c3ad734fa3fea4edebbf2d82c450ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "894b58110aeb1020bf1d0b17e2793a5d13a0850b060019017678251747c1cec4",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2017-10-12T16:09:29Z",
    "title_canon_sha256": "45823a58243a6c4f28b7ef25b5d8a39c6c7d625fbdf7a1d7940eebb876c9721d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.04584",
    "kind": "arxiv",
    "version": 4
  }
}