Pith Number

pith:YUBOQ3AP

pith:2024:YUBOQ3APKMOKUCARKJN6ULLKD5

not attested not anchored not stored refs pending

An Efficient Scaled spectral preconditioner for sequences of symmetric positive definite linear systems

Dominique Orban, Oussama Mouhtal, Selime G\"urol, Youssef Diouane

arxiv:2410.02204 v1 · 2024-10-03 · math.NA · cs.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{YUBOQ3APKMOKUCARKJN6ULLKD5}

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	2026-07-05T09:15:17.629309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c502e86c0f531caa0811525bea2d6a1f720faccc038de33240ef1c8b2247ac99

Aliases

arxiv: 2410.02204 · arxiv_version: 2410.02204v1 · doi: 10.48550/arxiv.2410.02204 · pith_short_12: YUBOQ3APKMOK · pith_short_16: YUBOQ3APKMOKUCAR · pith_short_8: YUBOQ3AP

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/YUBOQ3APKMOKUCARKJN6ULLKD5 \
  | 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: c502e86c0f531caa0811525bea2d6a1f720faccc038de33240ef1c8b2247ac99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f048780c8edde2567b68e9c070ea21e0554f3f4af580eed27b82e4cdbf7af376",
    "cross_cats_sorted": [
      "cs.NA",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-10-03T04:33:39Z",
    "title_canon_sha256": "ffc8b0cce6aed7b5e5271892e5f4864f3dc278b6e9b1fe7d164a2eeb35b311b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2410.02204",
    "kind": "arxiv",
    "version": 1
  }
}