Pith Number

pith:KJEQPSPF

pith:2015:KJEQPSPF3RS5BIG2QOUAY6JQ7S

not attested not anchored not stored refs pending

A Non-Krylov subspace Method for Solving Large and Sparse Linear System of Equations

Qun Lin, Wujian Peng

arxiv:1511.08042 v1 · 2015-11-25 · 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{KJEQPSPF3RS5BIG2QOUAY6JQ7S}

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	2026-05-18T01:26:01.914735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

524907c9e5dc65d0a0da83a80c7930fc8f67b4428b7b97c8c3e44510032f02a3

Aliases

arxiv: 1511.08042 · arxiv_version: 1511.08042v1 · doi: 10.48550/arxiv.1511.08042 · pith_short_12: KJEQPSPF3RS5 · pith_short_16: KJEQPSPF3RS5BIG2 · pith_short_8: KJEQPSPF

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/KJEQPSPF3RS5BIG2QOUAY6JQ7S \
  | 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: 524907c9e5dc65d0a0da83a80c7930fc8f67b4428b7b97c8c3e44510032f02a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdf43f209305cf01a21ef3156e8c8c76439c60b209cca2f77d5ff0c86b563338",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-11-25T12:55:22Z",
    "title_canon_sha256": "327f4ecb90664c8123ece22f1aeac8fcbe764c013d0e28df7f1c6c535b089b20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.08042",
    "kind": "arxiv",
    "version": 1
  }
}