Pith Number

pith:FCTCO3HQ

pith:2011:FCTCO3HQC2GWFZGDWZTF2WAPT2

not attested not anchored not stored refs pending

Learning Nonlinear Functions Using Regularized Greedy Forest

Rie Johnson, Tong Zhang

arxiv:1109.0887 v7 · 2011-09-05 · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FCTCO3HQC2GWFZGDWZTF2WAPT2}

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	2026-05-18T02:48:53.481545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28a6276cf0168d62e4c3b6665d580f9ebae85d098abed51c831297c47ef5d9ec

Aliases

arxiv: 1109.0887 · arxiv_version: 1109.0887v7 · doi: 10.48550/arxiv.1109.0887 · pith_short_12: FCTCO3HQC2GW · pith_short_16: FCTCO3HQC2GWFZGD · pith_short_8: FCTCO3HQ

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/FCTCO3HQC2GWFZGDWZTF2WAPT2 \
  | 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: 28a6276cf0168d62e4c3b6665d580f9ebae85d098abed51c831297c47ef5d9ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "677d0e6c69c08f45cc73bbba4d78d822c223b5eeb18964025ce4632faac26912",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2011-09-05T13:17:08Z",
    "title_canon_sha256": "a47b2aa9e8fb1ccfaea2f48601c8f0c715c8f72b29a801b98b000e872ab68dc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0887",
    "kind": "arxiv",
    "version": 7
  }
}