Pith Number

pith:CCFDHCWQ

pith:2018:CCFDHCWQTVVOMZ7GCABTYI4U2H

not attested not anchored not stored refs pending

Hierarchical Characteristic Set Merging for Optimizing SPARQL Queries in Heterogeneous RDF

George Papastefanatos, Marios Meimaris

arxiv:1809.02345 v1 · 2018-09-07 · 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{CCFDHCWQTVVOMZ7GCABTYI4U2H}

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	2026-05-18T00:06:17.394576Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

108a338ad09d6ae667e610033c2394d1eeab1e9eb41632aec1dcd9f780514b7c

Aliases

arxiv: 1809.02345 · arxiv_version: 1809.02345v1 · doi: 10.48550/arxiv.1809.02345 · pith_short_12: CCFDHCWQTVVO · pith_short_16: CCFDHCWQTVVOMZ7G · pith_short_8: CCFDHCWQ

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/CCFDHCWQTVVOMZ7GCABTYI4U2H \
  | 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: 108a338ad09d6ae667e610033c2394d1eeab1e9eb41632aec1dcd9f780514b7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "271138b30e2fa330f1c9cd0a1895443339917ae984cf55a93177711ef439f42e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2018-09-07T08:21:01Z",
    "title_canon_sha256": "fd44e0bd8582eb6a2f7edfb1dc8440e9ad9d8b843a36100b4f9dd14bd7a964f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.02345",
    "kind": "arxiv",
    "version": 1
  }
}