Pith Number

pith:6ZWDXZ4C

pith:2025:6ZWDXZ4CWEAFHWENFEQLQ62WBW

not attested not anchored not stored refs pending

Codd's Theorem for Databases over Semirings

Carles Noguera, Guillermo Badia, Phokion G. Kolaitis

arxiv:2501.16543 v2 · 2025-01-27 · 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{6ZWDXZ4CWEAFHWENFEQLQ62WBW}

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	2026-07-05T10:49:13.534330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f66c3be782b10053d88d2920b87b560db27428712d1c50e061e988f28ae5d5d1

Aliases

arxiv: 2501.16543 · arxiv_version: 2501.16543v2 · doi: 10.48550/arxiv.2501.16543 · pith_short_12: 6ZWDXZ4CWEAF · pith_short_16: 6ZWDXZ4CWEAFHWEN · pith_short_8: 6ZWDXZ4C

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/6ZWDXZ4CWEAFHWENFEQLQ62WBW \
  | 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: f66c3be782b10053d88d2920b87b560db27428712d1c50e061e988f28ae5d5d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f4122e182661e5dfebb59e28060c460d02f0fa5270dedc1139c64e119b1ea45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2025-01-27T22:31:15Z",
    "title_canon_sha256": "857802ccdc2833d688c9acf726470c32dd28963274c4cb53ada5b7b0dee7776c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.16543",
    "kind": "arxiv",
    "version": 2
  }
}