Pith Number

pith:WD5LRWYU

pith:2025:WD5LRWYUYBGJAOEWVO4YISUSO7

not attested not anchored not stored refs pending

StructMG: A Fast and Scalable Structured Algebraic Multigrid

Chensong Zhang, Haopeng Huang, Jian Sun, Peinan Yu, Qin Wang, Wei Xue, Xiaowen Xu, Xinliang Wang, Yi Zong, Yongxiao Zhou, Zhengding Hu

arxiv:2506.21932 v1 · 2025-06-27 · math.NA · cs.CE · cs.NA · cs.PF

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WD5LRWYUYBGJAOEWVO4YISUSO7}

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	2026-07-05T11:28:18.707851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0fab8db14c04c903896abb9844a9277c6ec569272eaa40b55cb43e8b096ad84

Aliases

arxiv: 2506.21932 · arxiv_version: 2506.21932v1 · doi: 10.48550/arxiv.2506.21932 · pith_short_12: WD5LRWYUYBGJ · pith_short_16: WD5LRWYUYBGJAOEW · pith_short_8: WD5LRWYU

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/WD5LRWYUYBGJAOEWVO4YISUSO7 \
  | 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: b0fab8db14c04c903896abb9844a9277c6ec569272eaa40b55cb43e8b096ad84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa7dc51c392ecdcb68d330d140c6ec18703df72d3836e824010b8c3723ca47fe",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.NA",
      "cs.PF"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-06-27T05:55:07Z",
    "title_canon_sha256": "07f1698275f815c46807bbbed36bdb7ced1664b68ead9ed1153c4fb516712e5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.21932",
    "kind": "arxiv",
    "version": 1
  }
}