Pith Number

pith:T7ABL5MS

pith:2013:T7ABL5MSNDTBOIH4N2J56NWEE2

not attested not anchored not stored refs pending

Description of the minimizers of least squares regularized~ with~ $\bm{\ell_0}$-norm. Uniqueness of the global minimizer

Mila Nikolova (CMLA)

arxiv:1304.5218 v2 · 2013-04-18 · 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{T7ABL5MSNDTBOIH4N2J56NWEE2}

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	2026-05-18T03:25:36.384472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fc015f59268e61720fc6e93df36c426bbbc5f2ccfc87ed0fabfafd8f115924c

Aliases

arxiv: 1304.5218 · arxiv_version: 1304.5218v2 · doi: 10.48550/arxiv.1304.5218 · pith_short_12: T7ABL5MSNDTB · pith_short_16: T7ABL5MSNDTBOIH4 · pith_short_8: T7ABL5MS

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/T7ABL5MSNDTBOIH4N2J56NWEE2 \
  | 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: 9fc015f59268e61720fc6e93df36c426bbbc5f2ccfc87ed0fabfafd8f115924c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ad6b6b913fba88aa14ca9867bf09f7717cbaddef822b54026f26f456ce5632a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-04-18T18:45:16Z",
    "title_canon_sha256": "03aacdd8e56868644333c477e97dfd4688e31dbe7b289a8724676d42e21d787a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5218",
    "kind": "arxiv",
    "version": 2
  }
}