Pith Number

pith:5JHVLDYZ

pith:2019:5JHVLDYZZ6CSO5ECKRO3QTPYXF

not attested not anchored not stored refs pending

Computational approaches to non-convex, sparsity-inducing multi-penalty regularization

Johannes Maly, Valeriya Naumova, Zeljko Kereta

arxiv:1908.02503 v4 · 2019-08-07 · 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{5JHVLDYZZ6CSO5ECKRO3QTPYXF}

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	2026-07-05T02:06:47.699051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea4f558f19cf85277482545db84df8b955ee32dd289aced94d6900c9de36a055

Aliases

arxiv: 1908.02503 · arxiv_version: 1908.02503v4 · doi: 10.48550/arxiv.1908.02503 · pith_short_12: 5JHVLDYZZ6CS · pith_short_16: 5JHVLDYZZ6CSO5EC · pith_short_8: 5JHVLDYZ

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/5JHVLDYZZ6CSO5ECKRO3QTPYXF \
  | 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: ea4f558f19cf85277482545db84df8b955ee32dd289aced94d6900c9de36a055

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2acb8aba44661515caf06305acc018ae8c772236f4ce8f90612cf39d45b223dc",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-08-07T09:43:10Z",
    "title_canon_sha256": "bd9922cf64630a0c4869d8dd507da7a5b50e3015916b6cffb012b50c2184c550"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02503",
    "kind": "arxiv",
    "version": 4
  }
}