Pith Number

pith:VANB246I

pith:2010:VANB246IR7WT6DZIZFSPJWHLMG

not attested not anchored not stored refs pending

Parallel sparse matrix-vector multiplication as a test case for hybrid MPI+OpenMP programming

Georg Hager, Gerald Schubert, Gerhard Wellein, Holger Fehske

arxiv:1101.0091 v1 · 2010-12-30 · cs.PF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VANB246IR7WT6DZIZFSPJWHLMG}

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	2026-05-18T04:01:13.279643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a81a1d73c88fed3f0f28c964f4d8eb61a968554e43b093555beefb3691d46eaa

Aliases

arxiv: 1101.0091 · arxiv_version: 1101.0091v1 · doi: 10.48550/arxiv.1101.0091 · pith_short_12: VANB246IR7WT · pith_short_16: VANB246IR7WT6DZI · pith_short_8: VANB246I

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/VANB246IR7WT6DZIZFSPJWHLMG \
  | 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: a81a1d73c88fed3f0f28c964f4d8eb61a968554e43b093555beefb3691d46eaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f7f5e476c4351f6b7e45b4c3825a16b381153b47656b6a699578bd4c26fe6dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PF",
    "submitted_at": "2010-12-30T14:21:25Z",
    "title_canon_sha256": "09383fe3b86a1f88b7ceb067f3d06a8fe023b27ebd72acef90e83598e46d8385"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0091",
    "kind": "arxiv",
    "version": 1
  }
}