Pith Number

pith:4HHFZBO6

pith:2014:4HHFZBO6X7T5UQSH4ZFQZXRVE4

not attested not anchored not stored refs pending

Pathwise Coordinate Optimization for Sparse Learning: Algorithm and Theory

Han Liu, Tong Zhang, Tuo Zhao

arxiv:1412.7477 v7 · 2014-12-23 · stat.ML · cs.LG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4HHFZBO6X7T5UQSH4ZFQZXRVE4}

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	2026-05-18T00:43:09.774206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1ce5c85debfe7da4247e64b0cde3527086c957315093f3dbacff5a919a775f4

Aliases

arxiv: 1412.7477 · arxiv_version: 1412.7477v7 · doi: 10.48550/arxiv.1412.7477 · pith_short_12: 4HHFZBO6X7T5 · pith_short_16: 4HHFZBO6X7T5UQSH · pith_short_8: 4HHFZBO6

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/4HHFZBO6X7T5UQSH4ZFQZXRVE4 \
  | 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: e1ce5c85debfe7da4247e64b0cde3527086c957315093f3dbacff5a919a775f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77e3af7acb9c3f5f0732470061d390238433ed748b9d7c7790eeb70bc73864dc",
    "cross_cats_sorted": [
      "cs.LG",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2014-12-23T19:12:24Z",
    "title_canon_sha256": "930ae842d02912696e6c9b175abff3242555d45d54e98fd1e925273e4881f939"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.7477",
    "kind": "arxiv",
    "version": 7
  }
}