Pith Number

pith:QOWYX4P2

pith:2016:QOWYX4P257MVAISCSHJF5G57RZ

not attested not anchored not stored refs pending

Bidiagonalization with Parallel Tiled Algorithms

Jack Dongarra, Julien Langou, Mathieu Faverge, Yves Robert

arxiv:1611.06892 v1 · 2016-11-18 · cs.MS · cs.NA · math.NA · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QOWYX4P257MVAISCSHJF5G57RZ}

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	2026-05-18T00:57:25.065468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83ad8bf1faefd950224291d25e9bbf8e5913fb61eb577bf99017228384292b87

Aliases

arxiv: 1611.06892 · arxiv_version: 1611.06892v1 · doi: 10.48550/arxiv.1611.06892 · pith_short_12: QOWYX4P257MV · pith_short_16: QOWYX4P257MVAISC · pith_short_8: QOWYX4P2

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/QOWYX4P257MVAISCSHJF5G57RZ \
  | 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: 83ad8bf1faefd950224291d25e9bbf8e5913fb61eb577bf99017228384292b87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b6d6a396e7d1df2bcf2fcb1e76d42e4ca139a0a4ab208a12db693850d4de549",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2016-11-18T15:11:48Z",
    "title_canon_sha256": "40635befaee01c1db2269a59962f075e4bd02158b7ace7038168de8f3f3a740c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.06892",
    "kind": "arxiv",
    "version": 1
  }
}