Pith Number

pith:FE2OLBNI

pith:2019:FE2OLBNIBZFDGAGQFN5RVCIBAT

not attested not anchored not stored refs pending

The cost-free nature of optimally tuning Tikhonov regularizers and other ordered smoothers

Dana Yang, Pierre C Bellec

arxiv:1905.12517 v1 · 2019-05-29 · math.ST · stat.ML · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FE2OLBNIBZFDGAGQFN5RVCIBAT}

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	2026-05-17T23:44:44.061381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2934e585a80e4a3300d02b7b1a890104d6c8eb41ba832c80f3ab9d288883a2d8

Aliases

arxiv: 1905.12517 · arxiv_version: 1905.12517v1 · doi: 10.48550/arxiv.1905.12517 · pith_short_12: FE2OLBNIBZFD · pith_short_16: FE2OLBNIBZFDGAGQ · pith_short_8: FE2OLBNI

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/FE2OLBNIBZFDGAGQFN5RVCIBAT \
  | 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: 2934e585a80e4a3300d02b7b1a890104d6c8eb41ba832c80f3ab9d288883a2d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd63e07a8fa855f02d9bd54ef548255d2108aed2a440bad59ec0cd2bea41bd57",
    "cross_cats_sorted": [
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2019-05-29T15:15:52Z",
    "title_canon_sha256": "bc8b3bbf1e342da895d18a29445dcfd87dddf9dc4bc9c7e4d090c151d7f3444a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.12517",
    "kind": "arxiv",
    "version": 1
  }
}