Pith Number

pith:PPM4IQAQ

pith:2025:PPM4IQAQHIUZFWFCZR7MCZI7JE

not attested not anchored not stored refs pending

A Parallel and Highly-Portable HPC Poisson Solver: Preconditioned Bi-CGSTAB with alpaka

Klaus Steiniger, Luca Pennati, M{\aa}ns I. Andersson, Michael Bussmann, Rene Widera, Stefano Markidis, Tapish Narwal

arxiv:2503.08935 v1 · 2025-03-11 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PPM4IQAQHIUZFWFCZR7MCZI7JE}

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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.

Cited by

1 paper in Pith

Portable High-Performance Kernel Generation for a Computational Fluid Dynamics Code with DaCe

Receipt and verification

First computed	2026-07-05T10:29:44.135860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bd9c440103a2992d8a2cc7ec1651f4916fc3c58af81047a33f7ec27c2f14155

Aliases

arxiv: 2503.08935 · arxiv_version: 2503.08935v1 · doi: 10.48550/arxiv.2503.08935 · pith_short_12: PPM4IQAQHIUZ · pith_short_16: PPM4IQAQHIUZFWFC · pith_short_8: PPM4IQAQ

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/PPM4IQAQHIUZFWFCZR7MCZI7JE \
  | 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: 7bd9c440103a2992d8a2cc7ec1651f4916fc3c58af81047a33f7ec27c2f14155

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b505e8c9368020405c94a424e5517fca22cc951eae966b25dcd82181e70e0927",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2025-03-11T22:32:08Z",
    "title_canon_sha256": "bdb6ecd4758e5bbb23faf12bbc7a7b3018e4976544217f341c1b96aec9d9af9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.08935",
    "kind": "arxiv",
    "version": 1
  }
}