Pith Number

pith:WH6GQ4PN

pith:2023:WH6GQ4PNHE45TL7WFCXSECJFQW

not attested not anchored not stored refs pending

Lero: A Learning-to-Rank Query Optimizer

Andreas Pfadler, Bolin Ding, Jingren Zhou, Rong Zhu, Wei Chen, Xingguang Chen, Ziniu Wu

arxiv:2302.06873 v2 · 2023-02-14 · cs.DB · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WH6GQ4PNHE45TL7WFCXSECJFQW}

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	2026-07-05T05:43:20.256924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1fc6871ed3939d9aff628af22092585835b0c2a1dcc6a6a3ef080828d5a3bda

Aliases

arxiv: 2302.06873 · arxiv_version: 2302.06873v2 · doi: 10.48550/arxiv.2302.06873 · pith_short_12: WH6GQ4PNHE45 · pith_short_16: WH6GQ4PNHE45TL7W · pith_short_8: WH6GQ4PN

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/WH6GQ4PNHE45TL7WFCXSECJFQW \
  | 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: b1fc6871ed3939d9aff628af22092585835b0c2a1dcc6a6a3ef080828d5a3bda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dc7aec262761802c6df9cf08ca6d5a135ccad24d8e56ffc7b6bfb9f942c60fb",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2023-02-14T07:31:11Z",
    "title_canon_sha256": "42ba259dc31748537810872e5c9cc063b77040f526556d6a288837c9ef1bc247"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.06873",
    "kind": "arxiv",
    "version": 2
  }
}