Pith Number

pith:PZWEMEJC

pith:2016:PZWEMEJCKV5VDUECGHFJDM4LFJ

not attested not anchored not stored refs pending

On the convergence of a linesearch based proximal-gradient method for nonconvex optimization

Federica Porta, Ignace Loris, Marco Prato, Silvia Bonettini, Simone Rebegoldi

arxiv:1605.03791 v2 · 2016-05-12 · 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{PZWEMEJCKV5VDUECGHFJDM4LFJ}

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	2026-05-18T00:46:49.441611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e6c461122557b51d08231ca91b38b2a6be933e4419e788ac938a75a8eeea253

Aliases

arxiv: 1605.03791 · arxiv_version: 1605.03791v2 · doi: 10.48550/arxiv.1605.03791 · pith_short_12: PZWEMEJCKV5V · pith_short_16: PZWEMEJCKV5VDUEC · pith_short_8: PZWEMEJC

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/PZWEMEJCKV5VDUECGHFJDM4LFJ \
  | 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: 7e6c461122557b51d08231ca91b38b2a6be933e4419e788ac938a75a8eeea253

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d133a8ac0745d4f9f8b8a09955c601f4a253af55d72e36411ddcea4083cdc4c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-05-12T12:55:19Z",
    "title_canon_sha256": "7334fa1cf5ff31708045f2bf2313a6d7b831dc63860fee775c9d7eba4aefbbd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03791",
    "kind": "arxiv",
    "version": 2
  }
}