Pith Number

pith:EW2MH2Z2

pith:2016:EW2MH2Z2NR74DODBNNN6RNKLI4

not attested not anchored not stored refs pending

FastBDT: A speed-optimized and cache-friendly implementation of stochastic gradient-boosted decision trees for multivariate classification

Thomas Keck

arxiv:1609.06119 v1 · 2016-09-20 · 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{EW2MH2Z2NR74DODBNNN6RNKLI4}

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	2026-05-18T01:04:16.617673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25b4c3eb3a6c7fc1b8616b5be8b54b473e5afd5360b32a56c20da824224281fb

Aliases

arxiv: 1609.06119 · arxiv_version: 1609.06119v1 · doi: 10.48550/arxiv.1609.06119 · pith_short_12: EW2MH2Z2NR74 · pith_short_16: EW2MH2Z2NR74DODB · pith_short_8: EW2MH2Z2

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/EW2MH2Z2NR74DODBNNN6RNKLI4 \
  | 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: 25b4c3eb3a6c7fc1b8616b5be8b54b473e5afd5360b32a56c20da824224281fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0df24d0f8129512b8e909046cb94880508f2f2ab563352c19ae940f4364a871",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-09-20T11:50:52Z",
    "title_canon_sha256": "3964f6dc6b37878c355c876d7e6e7dbd4a3d3a6903b39703249567b945676322"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.06119",
    "kind": "arxiv",
    "version": 1
  }
}