Pith Number

pith:WQPVDFTL

pith:2012:WQPVDFTL2A6GDSJ3XB5E5QPGEQ

not attested not anchored not stored refs pending

Strong Scaling of Matrix Multiplication Algorithms and Memory-Independent Communication Lower Bounds

Benjamin Lipshitz, Grey Ballard, James Demmel, Oded Schwartz, Olga Holtz

arxiv:1202.3177 v1 · 2012-02-14 · cs.DS · cs.CC · cs.DC · cs.NA · math.CO · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WQPVDFTL2A6GDSJ3XB5E5QPGEQ}

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	2026-05-18T04:02:14.492494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b41f51966bd03c61c93bb87a4ec1e62435010a887a0068dd9eaf64cab92fb3f4

Aliases

arxiv: 1202.3177 · arxiv_version: 1202.3177v1 · doi: 10.48550/arxiv.1202.3177 · pith_short_12: WQPVDFTL2A6G · pith_short_16: WQPVDFTL2A6GDSJ3 · pith_short_8: WQPVDFTL

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/WQPVDFTL2A6GDSJ3XB5E5QPGEQ \
  | 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: b41f51966bd03c61c93bb87a4ec1e62435010a887a0068dd9eaf64cab92fb3f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab13fdeda6ee14bee085128fcd0c30b44d86072412d51be4b0796d36764cc3a6",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DC",
      "cs.NA",
      "math.CO",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-02-14T23:42:19Z",
    "title_canon_sha256": "6f81b1d0015b4969eba271e9a6e6a1d9c954fc571a6abdc378e8084fc8fa66bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3177",
    "kind": "arxiv",
    "version": 1
  }
}