Pith Number

pith:GFI6B27Z

pith:2019:GFI6B27ZJPI2I4QA7QAT3B6SLF

not attested not anchored not stored refs pending

Can the Optimizer Cost be Used to Predict Query Execution Times?

Anthony Kleerekoper, Javier Navaridas, Mikel Lujan

arxiv:1905.00774 v1 · 2019-05-02 · 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{GFI6B27ZJPI2I4QA7QAT3B6SLF}

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	2026-05-17T23:47:09.336802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3151e0ebf94bd1a47200fc013d87d259602fc21e70a86a78f26779fa94925dd5

Aliases

arxiv: 1905.00774 · arxiv_version: 1905.00774v1 · doi: 10.48550/arxiv.1905.00774 · pith_short_12: GFI6B27ZJPI2 · pith_short_16: GFI6B27ZJPI2I4QA · pith_short_8: GFI6B27Z

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/GFI6B27ZJPI2I4QA7QAT3B6SLF \
  | 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: 3151e0ebf94bd1a47200fc013d87d259602fc21e70a86a78f26779fa94925dd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47e660aa3272869895ac6b8edb3b9382e22b0985e04a406cd339fb366de783d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2019-05-02T14:35:47Z",
    "title_canon_sha256": "d756c213bd032711472a66f4226aa9f54c2f27d106b3160856dcaad0ff5f116d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00774",
    "kind": "arxiv",
    "version": 1
  }
}