Pith Number

pith:RRIC3LGL

pith:2017:RRIC3LGLW4E27TFAEIMPR3KTHK

not attested not anchored not stored refs pending

Algorithmic patterns for $\mathcal{H}$-matrices on many-core processors

Peter Zaspel

arxiv:1708.09707 v1 · 2017-08-31 · cs.DC · cs.MS · 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{RRIC3LGLW4E27TFAEIMPR3KTHK}

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	2026-05-18T00:36:13.691249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c502daccbb709afcca02218f8ed533ab9c0e46586bf3f947fc873696ebcf30c

Aliases

arxiv: 1708.09707 · arxiv_version: 1708.09707v1 · doi: 10.48550/arxiv.1708.09707 · pith_short_12: RRIC3LGLW4E2 · pith_short_16: RRIC3LGLW4E27TFA · pith_short_8: RRIC3LGL

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/RRIC3LGLW4E27TFAEIMPR3KTHK \
  | 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: 8c502daccbb709afcca02218f8ed533ab9c0e46586bf3f947fc873696ebcf30c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a92b378f6e632e4521baa96803dc9914f08c9184d9f3aea9e654920cf36216e",
    "cross_cats_sorted": [
      "cs.MS",
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2017-08-31T13:50:42Z",
    "title_canon_sha256": "ff51cbc2979e680f157dabea22fe675f36ada9a289beaff20e720fe5173f8d82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09707",
    "kind": "arxiv",
    "version": 1
  }
}