Pith Number

pith:DRZU2MI7

pith:2025:DRZU2MI7QYI3BR5OMPGGAFJVN2

not attested not anchored not stored refs pending

On the Spectral Clustering in Algebraic Multigrid Methods

Conor McCoid, Jose Pablo Lucero Lorca, Michal Outrata

arxiv:2511.12298 v4 · 2025-11-15 · 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{DRZU2MI7QYI3BR5OMPGGAFJVN2}

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	2026-06-04T01:09:39.578568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c734d311f8611b0c7ae63cc6015356eb17ccd3be2b16cd67422a62a1353af87

Aliases

arxiv: 2511.12298 · arxiv_version: 2511.12298v4 · doi: 10.48550/arxiv.2511.12298 · pith_short_12: DRZU2MI7QYI3 · pith_short_16: DRZU2MI7QYI3BR5O · pith_short_8: DRZU2MI7

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/DRZU2MI7QYI3BR5OMPGGAFJVN2 \
  | 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: 1c734d311f8611b0c7ae63cc6015356eb17ccd3be2b16cd67422a62a1353af87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36646f92882e3620b063106ef61abede0f79902ddeda03f6a5759cc9be34a6d9",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-11-15T17:18:22Z",
    "title_canon_sha256": "ddd4b8c48f4a8c32bc85b406c50fa09f6a57bae85a289dbf9fe4e506318be6cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2511.12298",
    "kind": "arxiv",
    "version": 4
  }
}