Pith Number

pith:UU2NZSL4

pith:2022:UU2NZSL4EYQY4H6J4P3CIXCZKN

not attested not anchored not stored refs pending

Efficient Regularized Proximal Quasi-Newton Methods for Large-Scale Nonconvex Composite Optimization Problems

Christian Kanzow, Theresa Lechner

arxiv:2210.07644 v1 · 2022-10-14 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UU2NZSL4EYQY4H6J4P3CIXCZKN}

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.

Cited by

1 paper in Pith

On the Universality of Simple Trust-Region Algorithms

Receipt and verification

First computed	2026-07-05T05:06:39.655142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a534dcc97c26218e1fc9e3f6245c59534e312bbbbd55485fa1c6fd4ae97a45ab

Aliases

arxiv: 2210.07644 · arxiv_version: 2210.07644v1 · doi: 10.48550/arxiv.2210.07644 · pith_short_12: UU2NZSL4EYQY · pith_short_16: UU2NZSL4EYQY4H6J · pith_short_8: UU2NZSL4

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/UU2NZSL4EYQY4H6J4P3CIXCZKN \
  | 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: a534dcc97c26218e1fc9e3f6245c59534e312bbbbd55485fa1c6fd4ae97a45ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d62994bd6e1be55b9bd6bac44e59bb31292911b411c4b0da6ab02ddbb081f849",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2022-10-14T08:53:48Z",
    "title_canon_sha256": "72a065e828528a3d910ef198c7b727e3726f9b5e7b1a8b02630494925fc517d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.07644",
    "kind": "arxiv",
    "version": 1
  }
}