Pith Number

pith:XHK6XK4B

pith:2015:XHK6XK4BZKKDD2JTJXDUUVI56N

not attested not anchored not stored refs pending

Efficient Elastic Net Regularization for Sparse Linear Models

Charles Elkan, Zachary C. Lipton

arxiv:1505.06449 v3 · 2015-05-24 · 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{XHK6XK4BZKKDD2JTJXDUUVI56N}

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	2026-05-18T01:37:22.960196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9d5ebab81ca9431e9334dc74a551df36fd0e8a060d3ab94e0a59947570b01d3

Aliases

arxiv: 1505.06449 · arxiv_version: 1505.06449v3 · doi: 10.48550/arxiv.1505.06449 · pith_short_12: XHK6XK4BZKKD · pith_short_16: XHK6XK4BZKKDD2JT · pith_short_8: XHK6XK4B

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/XHK6XK4BZKKDD2JTJXDUUVI56N \
  | 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: b9d5ebab81ca9431e9334dc74a551df36fd0e8a060d3ab94e0a59947570b01d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6041e06c0d989213501091b7c735a382f7ccf4ce151f173c54eaae1e1034d31a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-05-24T15:42:58Z",
    "title_canon_sha256": "eca1d0ceec889e26d0e0517efed4a37bf53e12f42207c5ecbcad19286e9a8b8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06449",
    "kind": "arxiv",
    "version": 3
  }
}