Pith Number

pith:FVTGVVZH

pith:2022:FVTGVVZHORNAMQQP374I556YN6

not attested not anchored not stored refs pending

Sketch-and-Lift: Scalable Subsampled Semidefinite Program for $K$-means Clustering

Xiaohui Chen, Yubo Zhuang, Yun Yang

arxiv:2201.08226 v2 · 2022-01-20 · stat.ML · 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{FVTGVVZHORNAMQQP374I556YN6}

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	2026-07-05T03:55:31.997941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d666ad727745a06420fdff88ef7d86face6020aa2da8f2db64072c414695806

Aliases

arxiv: 2201.08226 · arxiv_version: 2201.08226v2 · doi: 10.48550/arxiv.2201.08226 · pith_short_12: FVTGVVZHORNA · pith_short_16: FVTGVVZHORNAMQQP · pith_short_8: FVTGVVZH

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/FVTGVVZHORNAMQQP374I556YN6 \
  | 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: 2d666ad727745a06420fdff88ef7d86face6020aa2da8f2db64072c414695806

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d94514b61e5b74c6dbff6d336da1aad7f0516d3ec56fcbfabe5884d66ba636bc",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2022-01-20T15:31:28Z",
    "title_canon_sha256": "a772e5f1ce000d9a1f8cdb84cf28ecaf130563ae7ac4d8decb91c7245a1cab09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.08226",
    "kind": "arxiv",
    "version": 2
  }
}