Pith Number

pith:N5SNKTZY

pith:2014:N5SNKTZYGGDULXJ5LU62FQAU24

not attested not anchored not stored refs pending

A Trichotomy in the Complexity of Counting Answers to Conjunctive Queries

Hubie Chen, Stefan Mengel

arxiv:1408.0890 v3 · 2014-08-05 · cs.CC · cs.DB · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N5SNKTZYGGDULXJ5LU62FQAU24}

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	2026-05-18T02:29:01.399886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f64d54f38318745dd3d5d3da2c014d738514745e0a457e2b63806bc4a11b7aa

Aliases

arxiv: 1408.0890 · arxiv_version: 1408.0890v3 · doi: 10.48550/arxiv.1408.0890 · pith_short_12: N5SNKTZYGGDU · pith_short_16: N5SNKTZYGGDULXJ5 · pith_short_8: N5SNKTZY

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/N5SNKTZYGGDULXJ5LU62FQAU24 \
  | 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: 6f64d54f38318745dd3d5d3da2c014d738514745e0a457e2b63806bc4a11b7aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48efd90bc8a5fda6c89f5e4dc633a6c7e26e0754f7784f850dcea51eabfa42c9",
    "cross_cats_sorted": [
      "cs.DB",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-08-05T08:46:17Z",
    "title_canon_sha256": "e3924b528f09bfa2bcd024f84fb3b87058092a8f4777ed61b425b3755daec05b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.0890",
    "kind": "arxiv",
    "version": 3
  }
}