Pith Number

pith:QVOQAB7B

pith:2017:QVOQAB7BDSDCB6TPM532FRBQEL

not attested not anchored not stored refs pending

MPIgnite: An MPI-Like Language and Prototype Implementation for Apache Spark

Anthony Skjellum, Brandon L. Morris

arxiv:1707.04788 v1 · 2017-07-15 · 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{QVOQAB7BDSDCB6TPM532FRBQEL}

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	2026-05-18T00:40:12.261806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

855d0007e11c8620fa6f6777a2c43022c7118e40493fcb90c4c4db0f6dd5a557

Aliases

arxiv: 1707.04788 · arxiv_version: 1707.04788v1 · doi: 10.48550/arxiv.1707.04788 · pith_short_12: QVOQAB7BDSDC · pith_short_16: QVOQAB7BDSDCB6TP · pith_short_8: QVOQAB7B

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/QVOQAB7BDSDCB6TPM532FRBQEL \
  | 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: 855d0007e11c8620fa6f6777a2c43022c7118e40493fcb90c4c4db0f6dd5a557

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe53c21c895139f5019e1d46d397bc1c9c94aad7f82fe89e057804382f1737cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2017-07-15T21:28:03Z",
    "title_canon_sha256": "97d9ea709c19926a15b7fc468871e5fb7abdda4bc392565507be826a07c213a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04788",
    "kind": "arxiv",
    "version": 1
  }
}