Pith Number

pith:UENNEYJ6

pith:2015:UENNEYJ63GKWZPIQOY2K246MKU

not attested not anchored not stored refs pending

A Transformation Approach that Makes SPAI, PSAI and RSAI Procedures Efficient for Large Double Irregular Nonsymmetric Sparse Linear Systems

Wenjie Kang, Zhongxiao Jia

arxiv:1512.00624 v2 · 2015-12-02 · math.NA · 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{UENNEYJ63GKWZPIQOY2K246MKU}

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	2026-06-04T17:09:47.932458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a11ad2613ed9956cbd107634ad73cc550bee4f233c263fa867f9265823a89522

Aliases

arxiv: 1512.00624 · arxiv_version: 1512.00624v2 · doi: 10.48550/arxiv.1512.00624 · pith_short_12: UENNEYJ63GKW · pith_short_16: UENNEYJ63GKWZPIQ · pith_short_8: UENNEYJ6

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/UENNEYJ63GKWZPIQOY2K246MKU \
  | 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: a11ad2613ed9956cbd107634ad73cc550bee4f233c263fa867f9265823a89522

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00e32ac7a1e96d1bc46cb12f54cd8cb74728102fbc9b2c69764a56e05e37220e",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-12-02T09:36:06Z",
    "title_canon_sha256": "7aca22856f505cf7d97289036fa416e936f97d0f0a583819b46eb8a055df6a18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.00624",
    "kind": "arxiv",
    "version": 2
  }
}