Pith Number

pith:GSEIV5IH

pith:2026:GSEIV5IHZKXVRMJCFNCHW5HKEV

not attested not anchored not stored refs pending

Two-level convergence of Algebraic Multigrid with Overlapping Smoothers and Spectral Coarse Grids

B. S. Southworth, H. Al Daas, O. A. Krzysik

arxiv:2606.18404 v1 · 2026-06-16 · math.NA · cs.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{GSEIV5IHZKXVRMJCFNCHW5HKEV}

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	2026-06-19T16:11:00.530992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34888af507caaf58b1222b447b74ea256e38c58b5d1308de12658024e0cc6aba

Aliases

arxiv: 2606.18404 · arxiv_version: 2606.18404v1 · doi: 10.48550/arxiv.2606.18404 · pith_short_12: GSEIV5IHZKXV · pith_short_16: GSEIV5IHZKXVRMJC · pith_short_8: GSEIV5IH

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/GSEIV5IHZKXVRMJCFNCHW5HKEV \
  | 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: 34888af507caaf58b1222b447b74ea256e38c58b5d1308de12658024e0cc6aba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef0a600a59ea3f00e9689923c0c19495e58145b203c8bd3b9626e4fb9c1a33b4",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-16T18:52:29Z",
    "title_canon_sha256": "509078f51e6148b840282376229bdc31de4ea50aa19f4d1bec91d601815c47b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.18404",
    "kind": "arxiv",
    "version": 1
  }
}