Pith Number

pith:4U7VS4LY

pith:2017:4U7VS4LYCZTNGUI3PR5VZZVFBW

not attested not anchored not stored refs pending

Sketching for Kronecker Product Regression and P-splines

David P. Woodruff, Huaian Diao, Wen Sun, Zhao Song

arxiv:1712.09473 v1 · 2017-12-27 · cs.DS · 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{4U7VS4LYCZTNGUI3PR5VZZVFBW}

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	2026-05-18T00:27:08.278113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e53f5971781666d3511b7c7b5ce6a50d9b8df713c4a63eb37b5577866edd4070

Aliases

arxiv: 1712.09473 · arxiv_version: 1712.09473v1 · doi: 10.48550/arxiv.1712.09473 · pith_short_12: 4U7VS4LYCZTN · pith_short_16: 4U7VS4LYCZTNGUI3 · pith_short_8: 4U7VS4LY

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/4U7VS4LYCZTNGUI3PR5VZZVFBW \
  | 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: e53f5971781666d3511b7c7b5ce6a50d9b8df713c4a63eb37b5577866edd4070

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0da2dbd5c08db2f47ab00e7bd89a58ad120843d1a37509d9f44154cf04272eb3",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-12-27T01:26:52Z",
    "title_canon_sha256": "57da22f898b117a0a6d8cdba302e28729baf3c2871df521876229c92838b0ed0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09473",
    "kind": "arxiv",
    "version": 1
  }
}