Pith Number

pith:LV7DRL6F

pith:2017:LV7DRL6FWXCCH5IWCI5F3QP2QE

not attested not anchored not stored refs pending

$\ell_1$ Regression using Lewis Weights Preconditioning and Stochastic Gradient Descent

David Durfee, Kevin A. Lai, Saurabh Sawlani

arxiv:1708.07821 v3 · 2017-08-25 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LV7DRL6FWXCCH5IWCI5F3QP2QE}

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	2026-05-18T00:14:28.794200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d7e38afc5b5c423f516123a5dc1fa813e6b62bd105f5d56ec5361b18fc45124

Aliases

arxiv: 1708.07821 · arxiv_version: 1708.07821v3 · doi: 10.48550/arxiv.1708.07821 · pith_short_12: LV7DRL6FWXCC · pith_short_16: LV7DRL6FWXCCH5IW · pith_short_8: LV7DRL6F

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/LV7DRL6FWXCCH5IWCI5F3QP2QE \
  | 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: 5d7e38afc5b5c423f516123a5dc1fa813e6b62bd105f5d56ec5361b18fc45124

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbcf71c0eb3633cad35fb7de10236f68f8bffb40ef6d5a6efb704d0f7a82756f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-08-25T17:44:37Z",
    "title_canon_sha256": "482771cc0fd1722f40debcb1e926382aad9b411d74567eacb19e75e88cdffac0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.07821",
    "kind": "arxiv",
    "version": 3
  }
}