Pith Number

pith:4KI3Y2FW

pith:2012:4KI3Y2FWBUKK4O5EU6PBLVA7C3

not attested not anchored not stored refs pending

A semi-automatic method to guide the choice of ridge parameter in ridge regression

Erika Cule, Maria De Iorio

arxiv:1205.0686 v1 · 2012-05-03 · stat.AP · q-bio.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4KI3Y2FWBUKK4O5EU6PBLVA7C3}

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	2026-05-18T03:56:25.266307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e291bc68b60d14ae3ba4a79e15d41f16ca77a3fa166c8cb249374c9650cbfa32

Aliases

arxiv: 1205.0686 · arxiv_version: 1205.0686v1 · doi: 10.48550/arxiv.1205.0686 · pith_short_12: 4KI3Y2FWBUKK · pith_short_16: 4KI3Y2FWBUKK4O5E · pith_short_8: 4KI3Y2FW

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/4KI3Y2FWBUKK4O5EU6PBLVA7C3 \
  | 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: e291bc68b60d14ae3ba4a79e15d41f16ca77a3fa166c8cb249374c9650cbfa32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a532c198c234bff3b394d6b228f57ae69781b8fc0cdd12b9719d34739818fa1",
    "cross_cats_sorted": [
      "q-bio.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2012-05-03T11:54:13Z",
    "title_canon_sha256": "ee44dce52721162d324ff1f8c0cb38540f40310d2c074ab2b196e4f60b7ede54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0686",
    "kind": "arxiv",
    "version": 1
  }
}