Pith Number

pith:WGQFKHBE

pith:2012:WGQFKHBEXLNJC4RG3NZGZX2SLZ

not attested not anchored not stored refs pending

Stubby: A Transformation-based Optimizer for MapReduce Workflows

Harold Lim, Herodotos Herodotou, Shivnath Babu

arxiv:1208.0082 v1 · 2012-08-01 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WGQFKHBEXLNJC4RG3NZGZX2SLZ}

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	2026-05-18T03:49:45.025564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1a0551c24bada917226db726cdf525e600763a8188bd013d81cedfa771ea058

Aliases

arxiv: 1208.0082 · arxiv_version: 1208.0082v1 · doi: 10.48550/arxiv.1208.0082 · pith_short_12: WGQFKHBEXLNJ · pith_short_16: WGQFKHBEXLNJC4RG · pith_short_8: WGQFKHBE

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/WGQFKHBEXLNJC4RG3NZGZX2SLZ \
  | 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: b1a0551c24bada917226db726cdf525e600763a8188bd013d81cedfa771ea058

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e281a8b98e9cf5311730d2be7fe972c7305f396c911352af79e7658bd61479e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2012-08-01T03:49:32Z",
    "title_canon_sha256": "16f19bd0ead81746aa9b6042a9e4fcc97be3d1757da21b58d3aa02c455b18e21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0082",
    "kind": "arxiv",
    "version": 1
  }
}