Pith Number

pith:UVRUZIUC

pith:2026:UVRUZIUCA6O6Q6WRLZ2Y75CBWT

not attested not anchored not stored refs pending

LEARNT: A Practical Estimator for Cardinality of LIKE Queries with Formal Accuracy Guarantees

Divesh Srivastava, Hai Lan, Shixun Huang, Yang Yu, Yuwei Peng, Zhifeng Bao

arxiv:2605.24308 v1 · 2026-05-23 · 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{UVRUZIUCA6O6Q6WRLZ2Y75CBWT}

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	2026-05-26T01:02:59.024576Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5634ca282079de87ad15e758ff441b4d2d7a17081b40b66f2896e09884f2ecf

Aliases

arxiv: 2605.24308 · arxiv_version: 2605.24308v1 · doi: 10.48550/arxiv.2605.24308 · pith_short_12: UVRUZIUCA6O6 · pith_short_16: UVRUZIUCA6O6Q6WR · pith_short_8: UVRUZIUC

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/UVRUZIUCA6O6Q6WRLZ2Y75CBWT \
  | 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: a5634ca282079de87ad15e758ff441b4d2d7a17081b40b66f2896e09884f2ecf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6472e8cc5484e82167f6d8b5418eb032dffaf7536fbc51e285e49b8bcbe510d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2026-05-23T00:36:47Z",
    "title_canon_sha256": "f862e94d5671ca9a327498e78502cb655d63b9f7867cd242dd0baf5e73f18932"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.24308",
    "kind": "arxiv",
    "version": 1
  }
}