Pith Number

pith:THM4IIEA

pith:2025:THM4IIEAYIVJJFUYHCLAJUVC3A

not attested not anchored not stored refs pending

Piecewise Linear Approximation in Learned Index Structures: Theoretical and Empirical Analysis

Guangyi Zhang, Jianwei Liao, Jiayong Qin, Jingshu Peng, Lei Chen, Qiyu Liu, Sha Hu, Xianyu Zhu, Yingxia Shao, Zhigang Cai

arxiv:2506.20139 v1 · 2025-06-25 · cs.DB · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{THM4IIEAYIVJJFUYHCLAJUVC3A}

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	2026-07-05T11:27:00.960404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99d9c42080c22a949698389604d2a2d825cfe3ef56a325414b997502d03d6b25

Aliases

arxiv: 2506.20139 · arxiv_version: 2506.20139v1 · doi: 10.48550/arxiv.2506.20139 · pith_short_12: THM4IIEAYIVJ · pith_short_16: THM4IIEAYIVJJFUY · pith_short_8: THM4IIEA

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/THM4IIEAYIVJJFUYHCLAJUVC3A \
  | 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: 99d9c42080c22a949698389604d2a2d825cfe3ef56a325414b997502d03d6b25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4707c3446522c4d0dcecb88d27ef6fb9ba50bb8699d326404ccbbaeea76c0cd0",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2025-06-25T05:20:54Z",
    "title_canon_sha256": "2fe7ff7d9b10db5fd53c950c64629df9e46b9a14d1a724eae777541f40255d6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.20139",
    "kind": "arxiv",
    "version": 1
  }
}