Pith Number

pith:XM4E4JPW

pith:2019:XM4E4JPWZS3R7QNJ6XPDWUTB4N

not attested not anchored not stored refs pending

Optimal Sketching for Kronecker Product Regression and Low Rank Approximation

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

arxiv:1909.13384 v1 · 2019-09-29 · 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{XM4E4JPWZS3R7QNJ6XPDWUTB4N}

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	2026-07-05T00:08:09.758040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb384e25f6ccb71fc1a9f5de3b5261e35407ef03344dc8d3b3884853694571d3

Aliases

arxiv: 1909.13384 · arxiv_version: 1909.13384v1 · doi: 10.48550/arxiv.1909.13384 · pith_short_12: XM4E4JPWZS3R · pith_short_16: XM4E4JPWZS3R7QNJ · pith_short_8: XM4E4JPW

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/XM4E4JPWZS3R7QNJ6XPDWUTB4N \
  | 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: bb384e25f6ccb71fc1a9f5de3b5261e35407ef03344dc8d3b3884853694571d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21835be575c1e25da3997b56fa5691d6448f9f545f0762fdc93728dfd5ce292b",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-09-29T22:24:28Z",
    "title_canon_sha256": "72a7cef921ece9721ed0f01928c18945469d171150f0a9c3dbffa87873457b1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.13384",
    "kind": "arxiv",
    "version": 1
  }
}