Pith Number

pith:2R5D2O2C

pith:2011:2R5D2O2CIVG2VFPHGSERY7KUMC

not attested not anchored not stored refs pending

A novel and scalable Multigrid algorithm for many-core architectures

Carlos Malaga, Francisco Mandujano, Julian Becerra-Sagredo

arxiv:1108.2045 v1 · 2011-08-09 · cs.NA · math.NA · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2R5D2O2CIVG2VFPHGSERY7KUMC}

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	2026-05-18T04:15:49.490307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d47a3d3b42454daa95e734891c7d5460b452da75ec6cc10691b14ddd0719580e

Aliases

arxiv: 1108.2045 · arxiv_version: 1108.2045v1 · doi: 10.48550/arxiv.1108.2045 · pith_short_12: 2R5D2O2CIVG2 · pith_short_16: 2R5D2O2CIVG2VFPH · pith_short_8: 2R5D2O2C

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/2R5D2O2CIVG2VFPHGSERY7KUMC \
  | 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: d47a3d3b42454daa95e734891c7d5460b452da75ec6cc10691b14ddd0719580e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c8085d906fabff9bfabc9a585345313674500c7de0c79a6cc27b2f15ea9faf4",
    "cross_cats_sorted": [
      "math.NA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2011-08-09T20:39:54Z",
    "title_canon_sha256": "bc930c60638de20cb982c90670cf96ad85de3102f64bacaa20fceb0e80248f69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.2045",
    "kind": "arxiv",
    "version": 1
  }
}