Pith Number

pith:KUFHWIF4

pith:2017:KUFHWIF4AFRBKFGG4GNGBLBQGA

not attested not anchored not stored refs pending

Batched QR and SVD Algorithms on GPUs with Applications in Hierarchical Matrix Compression

David E. Keyes, George Turkiyyah, Hatem Ltaief, Wajih Halim Boukaram

arxiv:1707.05141 v1 · 2017-07-13 · cs.MS · cs.DS · cs.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{KUFHWIF4AFRBKFGG4GNGBLBQGA}

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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.

Receipt and verification

First computed	2026-05-18T00:40:11.252832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

550a7b20bc01621514c6e19a60ac30300b9516602a1a4d0dafca85a7e1de2d96

Aliases

arxiv: 1707.05141 · arxiv_version: 1707.05141v1 · doi: 10.48550/arxiv.1707.05141 · pith_short_12: KUFHWIF4AFRB · pith_short_16: KUFHWIF4AFRBKFGG · pith_short_8: KUFHWIF4

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/KUFHWIF4AFRBKFGG4GNGBLBQGA \
  | 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: 550a7b20bc01621514c6e19a60ac30300b9516602a1a4d0dafca85a7e1de2d96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4039fd5cb9d2efcb4039015cea5690be3b8b01f5e5c470bfbf7937376d2b394",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2017-07-13T12:25:52Z",
    "title_canon_sha256": "f06640ecbcba53bbbf1017ad55bea2885144f72c939f97b5f998d98d70ffc556"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.05141",
    "kind": "arxiv",
    "version": 1
  }
}