Pith Number

pith:DZQOB2IB

pith:2020:DZQOB2IBX35EGPKEJUM6BC37DR

not attested not anchored not stored refs pending

Spectral Clustering with Smooth Tiny Clusters

Hengrui Wang, Mingzhi Chen, Tong Yang, Yubo Zhang

arxiv:2009.04674 v1 · 2020-09-10 · cs.LG · 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{DZQOB2IBX35EGPKEJUM6BC37DR}

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	2026-07-05T01:34:28.903235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e60e0e901befa433d444d19e08b7f1c7fd5e247a58127902ede5d28f8989b5c

Aliases

arxiv: 2009.04674 · arxiv_version: 2009.04674v1 · doi: 10.48550/arxiv.2009.04674 · pith_short_12: DZQOB2IBX35E · pith_short_16: DZQOB2IBX35EGPKE · pith_short_8: DZQOB2IB

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/DZQOB2IBX35EGPKEJUM6BC37DR \
  | 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: 1e60e0e901befa433d444d19e08b7f1c7fd5e247a58127902ede5d28f8989b5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ac189e5899afa476400cbd21e2a1b84b507d084785eed59c06fae90922b9464",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-09-10T05:21:20Z",
    "title_canon_sha256": "372181f2ec62347ba811fae5656dc55cd5adcc25652b4e86a5832521d0b92e92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.04674",
    "kind": "arxiv",
    "version": 1
  }
}