Pith Number

pith:IRJTVWJW

pith:2021:IRJTVWJWRABH2DFP5CWEP4A4HT

not attested not anchored not stored refs pending

Performance Evaluation of Python Parallel Programming Models: Charm4Py and mpi4py

Jaemin Choi, Laxmikant V. Kale, Matthias Diener, Simeng Liu, Zane Fink

arxiv:2111.04872 v2 · 2021-11-08 · cs.DC · cs.PF · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IRJTVWJWRABH2DFP5CWEP4A4HT}

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	2026-07-05T06:46:29.425075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44533ad93688027d0cafe8ac47f01c3cedf6fce41f318ade0808bf1bc6eee127

Aliases

arxiv: 2111.04872 · arxiv_version: 2111.04872v2 · doi: 10.48550/arxiv.2111.04872 · pith_short_12: IRJTVWJWRABH · pith_short_16: IRJTVWJWRABH2DFP · pith_short_8: IRJTVWJW

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/IRJTVWJWRABH2DFP5CWEP4A4HT \
  | 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: 44533ad93688027d0cafe8ac47f01c3cedf6fce41f318ade0808bf1bc6eee127

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1175f746edad5cfb7292b20678031651265b18ef19384606e3cf27f99d345e37",
    "cross_cats_sorted": [
      "cs.PF",
      "cs.PL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2021-11-08T23:32:39Z",
    "title_canon_sha256": "3b9ba836186dbe59db133eb9767bb92a3d613128d6b2d1d7d3bd510b85c424ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.04872",
    "kind": "arxiv",
    "version": 2
  }
}