Pith Number

pith:5LLLK7FU

pith:2012:5LLLK7FUEWRH37JW2IJZIFZQLU

not attested not anchored not stored refs pending

Sparse LMS via Online Linearized Bregman Iteration

Dmitri B. Chklovskii, Tao Hu

arxiv:1210.0563 v1 · 2012-10-01 · cs.IT · cs.LG · math.IT · 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{5LLLK7FUEWRH37JW2IJZIFZQLU}

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	2026-05-18T03:44:14.909687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ead6b57cb425a27dfd36d2139417305d107bca579595db1972595ba31a811b7e

Aliases

arxiv: 1210.0563 · arxiv_version: 1210.0563v1 · doi: 10.48550/arxiv.1210.0563 · pith_short_12: 5LLLK7FUEWRH · pith_short_16: 5LLLK7FUEWRH37JW · pith_short_8: 5LLLK7FU

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/5LLLK7FUEWRH37JW2IJZIFZQLU \
  | 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: ead6b57cb425a27dfd36d2139417305d107bca579595db1972595ba31a811b7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5b122b5ca9cfd1e0c32017e30232b847bb9ff673b016851492c31eb7c022121",
    "cross_cats_sorted": [
      "cs.LG",
      "math.IT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-10-01T20:28:09Z",
    "title_canon_sha256": "31fc0c15276ef06ff68946a048045df5db8c8b5c57705bb86012ee39ad501cee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0563",
    "kind": "arxiv",
    "version": 1
  }
}