Pith Number

pith:UAUJA4WN

pith:2018:UAUJA4WNU3MYM7VL236LDO3RM4

not attested not anchored not stored refs pending

Alchemist: An Apache Spark <=> MPI Interface

Alex Gittens, Jey Kottalam, Kai Rothauge, Kristyn Maschhoff, Lisa Gerhardt, Michael Ringenburg, Michael W. Mahoney, Prabhat, Shusen Wang

arxiv:1806.01270 v1 · 2018-06-03 · cs.DC · cs.DB · physics.data-an · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UAUJA4WNU3MYM7VL236LDO3RM4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:14:13.281582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0289072cda6d9867eabd6fcb1bb71672ef6c958b9cbfcba0931b88fe020b77d

Aliases

arxiv: 1806.01270 · arxiv_version: 1806.01270v1 · doi: 10.48550/arxiv.1806.01270 · pith_short_12: UAUJA4WNU3MY · pith_short_16: UAUJA4WNU3MYM7VL · pith_short_8: UAUJA4WN

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/UAUJA4WNU3MYM7VL236LDO3RM4 \
  | 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: a0289072cda6d9867eabd6fcb1bb71672ef6c958b9cbfcba0931b88fe020b77d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ce7448c39103c9e8a407e1a1de647d83ed8d1c74e94adab0ffa3956e5ad6ff5",
    "cross_cats_sorted": [
      "cs.DB",
      "physics.data-an",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2018-06-03T23:25:29Z",
    "title_canon_sha256": "de1d13a79e1a749ab7f4c553a4a88c290de571644d4db57511e733c2728147b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.01270",
    "kind": "arxiv",
    "version": 1
  }
}