Pith Number

pith:RJ3WQMSO

pith:2016:RJ3WQMSOUETMXCIW5VOF47DXHV

not attested not anchored not stored refs pending

Fast Learning with Nonconvex L1-2 Regularization

James T. Kwok, Quanming Yao, Xiawei Guo

arxiv:1610.09461 v3 · 2016-10-29 · cs.LG · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RJ3WQMSOUETMXCIW5VOF47DXHV}

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	2026-05-18T00:42:07.508094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a7768324ea126cb8916ed5c5e7c773d70e3ec7b3ea13bc9287fa09b4eed6287

Aliases

arxiv: 1610.09461 · arxiv_version: 1610.09461v3 · doi: 10.48550/arxiv.1610.09461 · pith_short_12: RJ3WQMSOUETM · pith_short_16: RJ3WQMSOUETMXCIW · pith_short_8: RJ3WQMSO

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/RJ3WQMSOUETMXCIW5VOF47DXHV \
  | 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: 8a7768324ea126cb8916ed5c5e7c773d70e3ec7b3ea13bc9287fa09b4eed6287

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91524745d9c3705ac1fc6bdd39bfb8552e179065bf98fc548d1be0b392475e73",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-10-29T06:02:17Z",
    "title_canon_sha256": "fdbed8e8aa34a8331873dcfa5a71c8d68bd3056c7fa54784abf4b20dea3a95b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.09461",
    "kind": "arxiv",
    "version": 3
  }
}