Pith Number

pith:DYXGVQZI

pith:2015:DYXGVQZIYZ5E7SQHT7QIDH7RDO

not attested not anchored not stored refs pending

Schur Complement based domain decomposition preconditioners with Low-rank corrections

Ruipeng Li, Yousef Saad, Yuanzhe Xi

arxiv:1505.04340 v1 · 2015-05-16 · 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{DYXGVQZIYZ5E7SQHT7QIDH7RDO}

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	2026-05-18T02:07:25.635014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e2e6ac328c67a4fca079fe0819ff11b87444e93fa4b849ca7a2d6aa3aa78825

Aliases

arxiv: 1505.04340 · arxiv_version: 1505.04340v1 · doi: 10.48550/arxiv.1505.04340 · pith_short_12: DYXGVQZIYZ5E · pith_short_16: DYXGVQZIYZ5E7SQH · pith_short_8: DYXGVQZI

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/DYXGVQZIYZ5E7SQHT7QIDH7RDO \
  | 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: 1e2e6ac328c67a4fca079fe0819ff11b87444e93fa4b849ca7a2d6aa3aa78825

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7888ffff5162ba3d18ee1351ba42774b0f13601758348f55778b5e1cebbd420e",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2015-05-16T23:55:25Z",
    "title_canon_sha256": "3ca8bfa4d5af953d151d09d3ff1bee8bbbea0bde0c8e29d1687499705450e824"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04340",
    "kind": "arxiv",
    "version": 1
  }
}