Pith Number

pith:N3HD2EJG

pith:2025:N3HD2EJGKUWLBQWVCGCQOYNKOT

not attested not anchored not stored refs pending

Lower Bounds for Conjunctive Query Evaluation

Stefan Mengel

arxiv:2506.17702 v1 · 2025-06-21 · cs.DB · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N3HD2EJGKUWLBQWVCGCQOYNKOT}

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	2026-07-05T11:25:22.151563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ece3d1126552cb0c2d511850761aa74d2264734d9f9942baf6ca45f6f5784b4

Aliases

arxiv: 2506.17702 · arxiv_version: 2506.17702v1 · doi: 10.48550/arxiv.2506.17702 · pith_short_12: N3HD2EJGKUWL · pith_short_16: N3HD2EJGKUWLBQWV · pith_short_8: N3HD2EJG

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/N3HD2EJGKUWLBQWVCGCQOYNKOT \
  | 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: 6ece3d1126552cb0c2d511850761aa74d2264734d9f9942baf6ca45f6f5784b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96d4888af6e8cd9ed224bbc14ce4536e3b2c32f77b97709825a917121b093da0",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2025-06-21T12:29:29Z",
    "title_canon_sha256": "34a7b989eac558d64f73e3b87b5964c050137a0e81ae27bf337a2b3011969deb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.17702",
    "kind": "arxiv",
    "version": 1
  }
}