Pith Number

pith:FAG26D3J

pith:2020:FAG26D3JVGZ5FZOKZIXU5HBJIR

not attested not anchored not stored refs pending

Collectives in hybrid MPI+MPI code: design, practice and performance

Huan Zhou, Jose Gracia, Naweiluo Zhou, Ralf Schneider

arxiv:2007.11496 v1 · 2020-07-22 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FAG26D3JVGZ5FZOKZIXU5HBJIR}

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	2026-07-05T01:21:26.857918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

280daf0f69a9b3d2e5caca2f4e9c2944673462cc7c0fa0361bc151ab7557a4a1

Aliases

arxiv: 2007.11496 · arxiv_version: 2007.11496v1 · doi: 10.48550/arxiv.2007.11496 · pith_short_12: FAG26D3JVGZ5 · pith_short_16: FAG26D3JVGZ5FZOK · pith_short_8: FAG26D3J

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/FAG26D3JVGZ5FZOKZIXU5HBJIR \
  | 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: 280daf0f69a9b3d2e5caca2f4e9c2944673462cc7c0fa0361bc151ab7557a4a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6983e778ed6a1e1e6ef5f7040b2b36f9e175caf0bbcf3ff5a2806da066954fec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2020-07-22T15:34:13Z",
    "title_canon_sha256": "23dd4cfa07572b092d2db8be3d623e44bbcec12fae43dd9faecffb52ad8793e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.11496",
    "kind": "arxiv",
    "version": 1
  }
}