Pith Number

pith:GTGV5A5T

pith:2018:GTGV5A5TUMF2HFEVXUD62ENELX

not attested not anchored not stored refs pending

A Note on the Hardness of the Critical Tuple Problem

Dan Suciu, Egor V. Kostylev

arxiv:1804.00443 v1 · 2018-04-02 · 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{GTGV5A5TUMF2HFEVXUD62ENELX}

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	2026-05-18T00:19:37.144891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34cd5e83b3a30ba39495bd07ed11a45dc854b70ce55724588d068944f69e6467

Aliases

arxiv: 1804.00443 · arxiv_version: 1804.00443v1 · doi: 10.48550/arxiv.1804.00443 · pith_short_12: GTGV5A5TUMF2 · pith_short_16: GTGV5A5TUMF2HFEV · pith_short_8: GTGV5A5T

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/GTGV5A5TUMF2HFEVXUD62ENELX \
  | 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: 34cd5e83b3a30ba39495bd07ed11a45dc854b70ce55724588d068944f69e6467

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "066b1200431e35f1b5003cc805aaaeeaf384e033e3d14514062c9130e381bab2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2018-04-02T10:22:51Z",
    "title_canon_sha256": "96790e09cc73aba8201e7ab579c79ab8269a7ff554f4397fdcd4d070919eb095"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.00443",
    "kind": "arxiv",
    "version": 1
  }
}