Pith Number

pith:T6KFS5CC

pith:2015:T6KFS5CCYCGP45I46NXCDOCI4Z

not attested not anchored not stored refs pending

Decidability of Equivalence of Aggregate Count-Distinct Queries

Babak Bagheri Hariri, Val Tannen

arxiv:1509.00100 v1 · 2015-09-01 · 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{T6KFS5CCYCGP45I46NXCDOCI4Z}

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	2026-05-18T01:34:30.620285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f94597442c08cfe751cf36e21b848e67455e53e185069b41233e2875e1d8de1

Aliases

arxiv: 1509.00100 · arxiv_version: 1509.00100v1 · doi: 10.48550/arxiv.1509.00100 · pith_short_12: T6KFS5CCYCGP · pith_short_16: T6KFS5CCYCGP45I4 · pith_short_8: T6KFS5CC

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/T6KFS5CCYCGP45I46NXCDOCI4Z \
  | 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: 9f94597442c08cfe751cf36e21b848e67455e53e185069b41233e2875e1d8de1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ec9387ba9a74dff2baafc46767f0e7c84c84ba24ade460f8cff67d1e05bc211",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2015-09-01T00:15:42Z",
    "title_canon_sha256": "b9e189e51d79bfab8e86b4f11a0fe5f51b1c511bb98b280fba341d1caf5e480b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00100",
    "kind": "arxiv",
    "version": 1
  }
}