Pith Number

pith:BUSKTDXL

pith:2022:BUSKTDXLM63ZRGOHD4BJMJL6T4

not attested not anchored not stored refs pending

Distributed-Memory Sparse Kernels for Machine Learning

Aydin Bulu\c{c}, James Demmel, Vivek Bharadwaj

arxiv:2203.07673 v2 · 2022-03-15 · cs.DC · 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{BUSKTDXLM63ZRGOHD4BJMJL6T4}

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	2026-07-05T04:06:31.061153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d24a98eeb67b79899c71f0296257e9f2bce7d86cfdbd65d3ff1cc053ac8a4f6

Aliases

arxiv: 2203.07673 · arxiv_version: 2203.07673v2 · doi: 10.48550/arxiv.2203.07673 · pith_short_12: BUSKTDXLM63Z · pith_short_16: BUSKTDXLM63ZRGOH · pith_short_8: BUSKTDXL

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/BUSKTDXLM63ZRGOHD4BJMJL6T4 \
  | 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: 0d24a98eeb67b79899c71f0296257e9f2bce7d86cfdbd65d3ff1cc053ac8a4f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9176b95fc3b0fb002fbeab7b9e7f8cc395eb322784394073cb049b2e235c866e",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2022-03-15T06:34:39Z",
    "title_canon_sha256": "fcbac2a24c11814f703f542049de0a099a78072649e2796246a49b9495892a55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.07673",
    "kind": "arxiv",
    "version": 2
  }
}