Pith Number

pith:J6N6WGV4

pith:2018:J6N6WGV4QXK27EM2FGUOX5EBKQ

not attested not anchored not stored refs pending

Estimating the Cardinality of Conjunctive Queries over RDF Data Using Graph Summarisation

Boris Motik, Egor V. Kostylev, Giorgio Stefanoni

arxiv:1801.09619 v2 · 2018-01-29 · 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{J6N6WGV4QXK27EM2FGUOX5EBKQ}

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	2026-05-18T00:23:11.442565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f9beb1abc85d5af919a29a8ebf48154122ab162e215446a43d33880ba0fd1a6

Aliases

arxiv: 1801.09619 · arxiv_version: 1801.09619v2 · doi: 10.48550/arxiv.1801.09619 · pith_short_12: J6N6WGV4QXK2 · pith_short_16: J6N6WGV4QXK27EM2 · pith_short_8: J6N6WGV4

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/J6N6WGV4QXK27EM2FGUOX5EBKQ \
  | 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: 4f9beb1abc85d5af919a29a8ebf48154122ab162e215446a43d33880ba0fd1a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b607027bbc80f496612e13837194d8dc646899c77ced137f4ce29dfb5d12db3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2018-01-29T16:48:33Z",
    "title_canon_sha256": "a9152a147ddaa2cfcac254fe3e5d487afd7b0f6266c30a890c3bec4f1b7a19a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09619",
    "kind": "arxiv",
    "version": 2
  }
}