Pith Number

pith:LXYMFCXG

pith:2024:LXYMFCXGLR64A54KEPEI4SZ3SE

not attested not anchored not stored refs pending

Learning incomplete factorization preconditioners for GMRES

Aleix Nieto Juscafresa, Jens Sj\"olund, Paul H\"ausner

arxiv:2409.08262 v2 · 2024-09-12 · cs.LG · cs.NA · math.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{LXYMFCXGLR64A54KEPEI4SZ3SE}

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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.

Cited by

1 paper in Pith

Factored Sparse Approximate Inverse Preconditioning via Spectral Optimization

Receipt and verification

First computed	2026-07-05T09:47:34.720813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5df0c28ae65c7dc0778a23c88e4b3b913ade79617bdbafd78f6b7b36aea7c265

Aliases

arxiv: 2409.08262 · arxiv_version: 2409.08262v2 · doi: 10.48550/arxiv.2409.08262 · pith_short_12: LXYMFCXGLR64 · pith_short_16: LXYMFCXGLR64A54K · pith_short_8: LXYMFCXG

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/LXYMFCXGLR64A54KEPEI4SZ3SE \
  | 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: 5df0c28ae65c7dc0778a23c88e4b3b913ade79617bdbafd78f6b7b36aea7c265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "320e5d1866539d2a729f4d88c6e4cfa9b5e520f74aefe0dc4ceb421caf689f47",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2024-09-12T17:55:44Z",
    "title_canon_sha256": "1c3f023caa01bfb64bada2e04dd35c9a4097c1cdd04f26a21e0ee5a20e00e813"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.08262",
    "kind": "arxiv",
    "version": 2
  }
}