Pith Number

pith:5O2TJH32

pith:2021:5O2TJH32OBK7STU76REWVGBNVP

not attested not anchored not stored refs pending

Fast Sparse Decision Tree Optimization via Reference Ensembles

Chudi Zhong, Cynthia Rudin, Hayden McTavish, Ilias Karimalis, Jacques Chen, Margo Seltzer, Reto Achermann

arxiv:2112.00798 v7 · 2021-12-01 · 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{5O2TJH32OBK7STU76REWVGBNVP}

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	2026-07-05T04:37:56.668424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebb5349f7a7055f94e9ff4496a982dabc59ed094f90071b706c2b5cf92eecd3b

Aliases

arxiv: 2112.00798 · arxiv_version: 2112.00798v7 · doi: 10.48550/arxiv.2112.00798 · pith_short_12: 5O2TJH32OBK7 · pith_short_16: 5O2TJH32OBK7STU7 · pith_short_8: 5O2TJH32

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/5O2TJH32OBK7STU76REWVGBNVP \
  | 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: ebb5349f7a7055f94e9ff4496a982dabc59ed094f90071b706c2b5cf92eecd3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ad897f8e0b03b86d97fc3cec231451a64e5b9cf95d8223128400001bffcd044",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-12-01T19:39:28Z",
    "title_canon_sha256": "8eb477de39dc234ceabc663f2a63d68d35a57b0fb2a3a4107e51966fd944b9bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.00798",
    "kind": "arxiv",
    "version": 7
  }
}