Pith Number

pith:HDYEHCNN

pith:2018:HDYEHCNNOCMYNSS6BVXP4Z55SP

not attested not anchored not stored refs pending

A scalable H-matrix approach for the solution of boundary integral equations on multi-GPU clusters

Helmut Harbrecht, Peter Zaspel

arxiv:1806.11558 v1 · 2018-06-20 · cs.MS · cs.DC · 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{HDYEHCNNOCMYNSS6BVXP4Z55SP}

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	2026-05-18T00:12:01.543064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38f04389ad709986ca5e0d6efe67bd93e3e1c3d1938bd485d7e2dac028906da9

Aliases

arxiv: 1806.11558 · arxiv_version: 1806.11558v1 · doi: 10.48550/arxiv.1806.11558 · pith_short_12: HDYEHCNNOCMY · pith_short_16: HDYEHCNNOCMYNSS6 · pith_short_8: HDYEHCNN

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/HDYEHCNNOCMYNSS6BVXP4Z55SP \
  | 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: 38f04389ad709986ca5e0d6efe67bd93e3e1c3d1938bd485d7e2dac028906da9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e72d7444714551b635605ded9a0fa2b4d3fc479e18f32e92710d589d71c2df8",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2018-06-20T07:39:20Z",
    "title_canon_sha256": "88250c9a41ad60c8db9b62db4c5097cd440017cf966b0d6a7d271c1bd7a8bc14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.11558",
    "kind": "arxiv",
    "version": 1
  }
}