Pith Number

pith:2ZKENKIE

pith:2019:2ZKENKIESVMO67NBEGSKNCGP3U

not attested not anchored not stored refs pending

LocationSpark: In-memory Distributed Spatial Query Processing and Optimization

Ahmed R. Mahmood, Mingjie Tang, Mourad Ouzzani, Qutaibah M. Malluhi, Walid G. Aref, Yongyang Yu

arxiv:1907.03736 v2 · 2019-07-08 · 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{2ZKENKIESVMO67NBEGSKNCGP3U}

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	2026-05-17T23:40:29.708471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d65446a9049558ef7da121a4a688cfdd308454fba81125e8671fa305dfe7eb83

Aliases

arxiv: 1907.03736 · arxiv_version: 1907.03736v2 · doi: 10.48550/arxiv.1907.03736 · pith_short_12: 2ZKENKIESVMO · pith_short_16: 2ZKENKIESVMO67NB · pith_short_8: 2ZKENKIE

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/2ZKENKIESVMO67NBEGSKNCGP3U \
  | 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: d65446a9049558ef7da121a4a688cfdd308454fba81125e8671fa305dfe7eb83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3accf0251ba8240b25768d316c55cb18fb03d554bf0db3b92881bc7d54f61d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2019-07-08T17:36:40Z",
    "title_canon_sha256": "dda792e8eb3b358438ef1a86847f508b55e71b8223dd64912a631f54464c61cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.03736",
    "kind": "arxiv",
    "version": 2
  }
}