Pith Number

pith:2XN6UIHM

pith:2022:2XN6UIHMIYMLGYBVLBRVDH2HBY

not attested not anchored not stored refs pending

Performance Enhancement Strategies for Sparse Matrix-Vector Multiplication (SpMV) and Iterative Linear Solvers

Rashid Mehmood, Thaha Mohammed

arxiv:2212.07490 v1 · 2022-12-14 · cs.DS · cs.NA · 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{2XN6UIHMIYMLGYBVLBRVDH2HBY}

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	2026-07-05T05:25:33.514561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5dbea20ec4618b360355863519f470e137afc2530e0ce7d63aad321ddfdec2b

Aliases

arxiv: 2212.07490 · arxiv_version: 2212.07490v1 · doi: 10.48550/arxiv.2212.07490 · pith_short_12: 2XN6UIHMIYML · pith_short_16: 2XN6UIHMIYMLGYBV · pith_short_8: 2XN6UIHM

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/2XN6UIHMIYMLGYBVLBRVDH2HBY \
  | 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: d5dbea20ec4618b360355863519f470e137afc2530e0ce7d63aad321ddfdec2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f00aad1c70291ddb71d42c369586ea047c19dafdd7fdc9f1d98ad2922178cbc",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2022-12-14T20:17:26Z",
    "title_canon_sha256": "068a564db7462d2a2b8fa1dcc8a70d4d51a923ac2265094e36f82d2b6ed79939"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.07490",
    "kind": "arxiv",
    "version": 1
  }
}