Pith Number

pith:ZBGTLQPF

pith:2022:ZBGTLQPFV2CXKFDBOTIOYR4BKG

not attested not anchored not stored refs pending

Extended Randomized Kaczmarz Method for Sparse Least Squares and Impulsive Noise Problems

Dirk A Lorenz, Frank Sch\"opfer, Lionel Tondji, Maximilian Winkler

arxiv:2201.08620 v3 · 2022-01-21 · math.NA · cs.NA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZBGTLQPFV2CXKFDBOTIOYR4BKG}

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	2026-07-05T04:41:53.649574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c84d35c1e5ae8575146174d0ec478151ab4a9d5eedec18955c566dec890e01e0

Aliases

arxiv: 2201.08620 · arxiv_version: 2201.08620v3 · doi: 10.48550/arxiv.2201.08620 · pith_short_12: ZBGTLQPFV2CX · pith_short_16: ZBGTLQPFV2CXKFDB · pith_short_8: ZBGTLQPF

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/ZBGTLQPFV2CXKFDBOTIOYR4BKG \
  | 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: c84d35c1e5ae8575146174d0ec478151ab4a9d5eedec18955c566dec890e01e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2db0c78ae9c348eca1373763e40a2cb7d3f1905cb3e4035c35ea9f369438230",
    "cross_cats_sorted": [
      "cs.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-01-21T10:14:33Z",
    "title_canon_sha256": "782989491535c80e350d2227cb211f9bf9285ac60f1e94393016717b575fc082"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.08620",
    "kind": "arxiv",
    "version": 3
  }
}