Pith Number

pith:Z7RVSM2S

pith:2021:Z7RVSM2S6C7U4337N7MSJ3KVAY

not attested not anchored not stored refs pending

A short note on the counting complexity of conjunctive queries

Stefan Mengel

arxiv:2112.01108 v1 · 2021-12-02 · cs.LO · cs.CC · 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{Z7RVSM2S6C7U4337N7MSJ3KVAY}

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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.

Cited by

1 paper in Pith

Lower Bounds for Conjunctive Query Evaluation

Receipt and verification

First computed	2026-07-05T03:37:03.811976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfe3593352f0bf4e6f7f6fd924ed55063d2f81d34c8b25e9edc6c447ce5fd0f9

Aliases

arxiv: 2112.01108 · arxiv_version: 2112.01108v1 · doi: 10.48550/arxiv.2112.01108 · pith_short_12: Z7RVSM2S6C7U · pith_short_16: Z7RVSM2S6C7U4337 · pith_short_8: Z7RVSM2S

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/Z7RVSM2S6C7U4337N7MSJ3KVAY \
  | 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: cfe3593352f0bf4e6f7f6fd924ed55063d2f81d34c8b25e9edc6c447ce5fd0f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e1960795c50fe54b5b231f333f3378ccc03181333df4a416f4ecd636d1cf921",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2021-12-02T10:33:18Z",
    "title_canon_sha256": "ea2eee1ea363acf4b974a82e8837ea0eb80e02c66781dd4029b03d3bf1181298"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.01108",
    "kind": "arxiv",
    "version": 1
  }
}