Pith Number

pith:B3XQNA7Q

pith:2016:B3XQNA7QNZD4PDTSMXQ6LXD5RH

not attested not anchored not stored refs pending

SPARQL query processing with Apache Spark

Bernd Amann, Hubert Naacke, Olivier Cur\'e

arxiv:1604.08903 v2 · 2016-04-29 · 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{B3XQNA7QNZD4PDTSMXQ6LXD5RH}

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	2026-05-18T01:00:19.380611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0eef0683f06e47c78e7265e1e5dc7d89edf43baa32d0058149c2037c1a5cd777

Aliases

arxiv: 1604.08903 · arxiv_version: 1604.08903v2 · doi: 10.48550/arxiv.1604.08903 · pith_short_12: B3XQNA7QNZD4 · pith_short_16: B3XQNA7QNZD4PDTS · pith_short_8: B3XQNA7Q

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/B3XQNA7QNZD4PDTSMXQ6LXD5RH \
  | 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: 0eef0683f06e47c78e7265e1e5dc7d89edf43baa32d0058149c2037c1a5cd777

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfec03eadcd60a56fccfb3510b6a96597035e082396567044ccaf7fdadee7c49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2016-04-29T16:40:56Z",
    "title_canon_sha256": "0571a07a082663c162a56dacd419e4dc0f68fa48f301ec850158ee496c159666"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08903",
    "kind": "arxiv",
    "version": 2
  }
}