Pith Number

pith:GII5XZOY

pith:2014:GII5XZOYXKZMKM4E74ZNOILOWF

not attested not anchored not stored refs pending

A Fast Active Set Block Coordinate Descent Algorithm for $\ell_1$-regularized least squares

Francesco Rinaldi, Marianna De Santis, Stefano Lucidi

arxiv:1403.1738 v5 · 2014-03-07 · math.OC · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GII5XZOYXKZMKM4E74ZNOILOWF}

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	2026-05-18T01:10:11.102351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3211dbe5d8bab2c53384ff32d7216eb1482c8bfeb06cb72b7541431a57696b5d

Aliases

arxiv: 1403.1738 · arxiv_version: 1403.1738v5 · doi: 10.48550/arxiv.1403.1738 · pith_short_12: GII5XZOYXKZM · pith_short_16: GII5XZOYXKZMKM4E · pith_short_8: GII5XZOY

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/GII5XZOYXKZMKM4E74ZNOILOWF \
  | 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: 3211dbe5d8bab2c53384ff32d7216eb1482c8bfeb06cb72b7541431a57696b5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d50258967ec409cec74c5cabc9f712802e94a037d70d3991578b975e55a2fe7",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-03-07T12:52:05Z",
    "title_canon_sha256": "495b36e9417afcb80fcfdd349e8ed3dff8650efdfb6a03b73162139bc49d21f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.1738",
    "kind": "arxiv",
    "version": 5
  }
}