Pith Number

pith:FXF5PLON

pith:2019:FXF5PLONW6PQOWJH6AZKN6ZLKR

not attested not anchored not stored refs pending

Reducing Communication in Algebraic Multigrid with Multi-step Node Aware Communication

Amanda Bienz, Luke Olson, William Gropp

arxiv:1904.05838 v2 · 2019-04-11 · cs.DC · cs.MS · 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{FXF5PLONW6PQOWJH6AZKN6ZLKR}

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	2026-05-17T23:47:50.493185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dcbd7adcdb79f075927f032a6fb2b546c2267da88ad56ed3c906a8e54ea774d

Aliases

arxiv: 1904.05838 · arxiv_version: 1904.05838v2 · doi: 10.48550/arxiv.1904.05838 · pith_short_12: FXF5PLONW6PQ · pith_short_16: FXF5PLONW6PQOWJH · pith_short_8: FXF5PLON

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/FXF5PLONW6PQOWJH6AZKN6ZLKR \
  | 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: 2dcbd7adcdb79f075927f032a6fb2b546c2267da88ad56ed3c906a8e54ea774d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7105a5747b5212188846bf98cb7649a48bf7170d2f80bc88beb0e7dc5060592d",
    "cross_cats_sorted": [
      "cs.MS",
      "cs.NA",
      "cs.PF"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2019-04-11T16:43:11Z",
    "title_canon_sha256": "8bcec36290efe3dc66f5456c51f5f31cd771fc629c2077df79ebe70701d64392"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05838",
    "kind": "arxiv",
    "version": 2
  }
}