Pith Number

pith:UOX4T4NS

pith:2017:UOX4T4NSLDE7XFAOFK26FLDY33

not attested not anchored not stored refs pending

Gradient-based Regularization Parameter Selection for Problems with Non-smooth Penalty Functions

Jean Feng, Noah Simon

arxiv:1703.09813 v1 · 2017-03-28 · 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{UOX4T4NSLDE7XFAOFK26FLDY33}

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	2026-05-18T00:47:39.380208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3afc9f1b258c9fb940e2ab5e2ac78ded54588e6eb82489eef182e1b193930b0

Aliases

arxiv: 1703.09813 · arxiv_version: 1703.09813v1 · doi: 10.48550/arxiv.1703.09813 · pith_short_12: UOX4T4NSLDE7 · pith_short_16: UOX4T4NSLDE7XFAO · pith_short_8: UOX4T4NS

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/UOX4T4NSLDE7XFAOFK26FLDY33 \
  | 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: a3afc9f1b258c9fb940e2ab5e2ac78ded54588e6eb82489eef182e1b193930b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f00adc779ade0d7162733d55f0f7266624d99f8308a18a32f71d6c0c1f605964",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-03-28T21:41:13Z",
    "title_canon_sha256": "5f04cf1440780e22528f0a2c12c8262e8e849d5991b399853a66ddc53a5bed18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.09813",
    "kind": "arxiv",
    "version": 1
  }
}