Pith Number

pith:OKKBUW66

pith:2018:OKKBUW66EICNTASHFSNSR64YYH

not attested not anchored not stored refs pending

A Robust Iterative Scheme for Symmetric Indefinite Systems

Murat Manguoglu, Volker Mehrmann

arxiv:1805.12417 v3 · 2018-05-31 · cs.NA · 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{OKKBUW66EICNTASHFSNSR64YYH}

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	2026-05-17T23:55:29.333939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72941a5bde2204d982472c9b28fb98c1cb3aea51a3c2f5efe2893a7652bee609

Aliases

arxiv: 1805.12417 · arxiv_version: 1805.12417v3 · doi: 10.48550/arxiv.1805.12417 · pith_short_12: OKKBUW66EICN · pith_short_16: OKKBUW66EICNTASH · pith_short_8: OKKBUW66

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/OKKBUW66EICNTASHFSNSR64YYH \
  | 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: 72941a5bde2204d982472c9b28fb98c1cb3aea51a3c2f5efe2893a7652bee609

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a5e16fc92adff6d4dfa122819c20e8bc65198c9dec906b33e4ab7aa9d595d55",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2018-05-31T11:00:12Z",
    "title_canon_sha256": "87009d81013b8383e7be10c2d41dce7d82ee45ce36c68cb4c01e228c68398e77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.12417",
    "kind": "arxiv",
    "version": 3
  }
}