Pith Number

pith:UTEXHPUR

pith:2026:UTEXHPURLNGXOQ2Z2NZJVX3TJT

not attested not anchored not stored refs pending

Search Strategies for Optimal Classification and Regression Trees

Emir Demirovi\'c, Jacobus G. M. van der Linden, Mim van den Bos

arxiv:2607.28170 v1 · 2026-07-30 · cs.LG · 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{UTEXHPURLNGXOQ2Z2NZJVX3TJT}

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	2026-07-31T01:36:11.663789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

a4c973be915b4d774359d3729adf734ccd795b34b1416ee7969f7d1ad630d31a

Aliases

arxiv: 2607.28170 · arxiv_version: 2607.28170v1 · doi: 10.48550/arxiv.2607.28170 · pith_short_12: UTEXHPURLNGX · pith_short_16: UTEXHPURLNGXOQ2Z · pith_short_8: UTEXHPUR

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/UTEXHPURLNGXOQ2Z2NZJVX3TJT \
  | 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: a4c973be915b4d774359d3729adf734ccd795b34b1416ee7969f7d1ad630d31a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4368477c8965f61b89eebae497fe70e01392403abad4f366d1a3442ac0b367b",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-30T13:08:21Z",
    "title_canon_sha256": "b2c0f13e2ba50dbf28d69fd90c8352ad5f86486c86c7e33b72fe429e9cb2f012"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.28170",
    "kind": "arxiv",
    "version": 1
  }
}