Pith Number

pith:ZPYO4MCE

pith:2016:ZPYO4MCEZZ776BKAKVLHABRA5G

not attested not anchored not stored refs pending

OptEx: A Deadline-Aware Cost Optimization Model for Spark

Subhajit Sidhanta, Supratik Mukhopadhyay, Wojciech Golab

arxiv:1603.07936 v1 · 2016-03-25 · 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{ZPYO4MCEZZ776BKAKVLHABRA5G}

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	2026-05-18T00:58:33.827553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbf0ee3044ce7fff05405556700620e9b610a1e4175c2637bfb2a231f98aaaba

Aliases

arxiv: 1603.07936 · arxiv_version: 1603.07936v1 · doi: 10.48550/arxiv.1603.07936 · pith_short_12: ZPYO4MCEZZ77 · pith_short_16: ZPYO4MCEZZ776BKA · pith_short_8: ZPYO4MCE

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/ZPYO4MCEZZ776BKAKVLHABRA5G \
  | 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: cbf0ee3044ce7fff05405556700620e9b610a1e4175c2637bfb2a231f98aaaba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09025c82562eff474d3fb42728bd7c3105058c5882ab8f3e18710295d3bc9edc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2016-03-25T15:28:56Z",
    "title_canon_sha256": "29dc7f57154c1c0238242058d5cd8f87e32e7adde94f4ecb7d79a849432dd15d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.07936",
    "kind": "arxiv",
    "version": 1
  }
}