Pith Number

pith:P57JYR4V

pith:2026:P57JYR4V6NBHQ5N4SCUEJK6KHH

not attested not anchored not stored refs pending

Hinge Regression Trees and HRT-Boost: Newton-Optimized Oblique Learning for Compact Tabular Models

Hong Yan, Hongyi Li, Jun Xu

arxiv:2605.23422 v1 · 2026-05-22 · 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{P57JYR4V6NBHQ5N4SCUEJK6KHH}

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	2026-05-25T02:01:53.631136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f7e9c4795f3427875bc90a844abca39dd3508fc4dba8c8a972c343957bf956e

Aliases

arxiv: 2605.23422 · arxiv_version: 2605.23422v1 · doi: 10.48550/arxiv.2605.23422 · pith_short_12: P57JYR4V6NBH · pith_short_16: P57JYR4V6NBHQ5N4 · pith_short_8: P57JYR4V

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/P57JYR4V6NBHQ5N4SCUEJK6KHH \
  | 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: 7f7e9c4795f3427875bc90a844abca39dd3508fc4dba8c8a972c343957bf956e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1cfdebbe60e72f90f9c5693803ae88e68d3ae8a01a1a3a05cdde0081dbcc5526",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-22T09:33:20Z",
    "title_canon_sha256": "ba6f895bdb240e774c787e2844c2f206c8d96d8108fabd6beb066ea152f9197e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23422",
    "kind": "arxiv",
    "version": 1
  }
}