Pith Number

pith:WPF74F4K

pith:2023:WPF74F4KA34UGCG6QV5LLLWGTL

not attested not anchored not stored refs pending

The Degenerate Variable Metric Proximal Point Algorithm and Adaptive Stepsizes for Primal-Dual Douglas-Rachford

Dirk A. Lorenz, Emanuele Naldi, Jannis Marquardt

arxiv:2302.13128 v1 · 2023-02-25 · 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{WPF74F4KA34UGCG6QV5LLLWGTL}

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	2026-07-05T05:45:43.565750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3cbfe178a06f94308de857ab5aec69ad3b258b6a2220de688fe82ed755b9fe1

Aliases

arxiv: 2302.13128 · arxiv_version: 2302.13128v1 · doi: 10.48550/arxiv.2302.13128 · pith_short_12: WPF74F4KA34U · pith_short_16: WPF74F4KA34UGCG6 · pith_short_8: WPF74F4K

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/WPF74F4KA34UGCG6QV5LLLWGTL \
  | 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: b3cbfe178a06f94308de857ab5aec69ad3b258b6a2220de688fe82ed755b9fe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76bec8bde3648e819bdd0488dd4c465d8c11640713239c6d86321e7b84698a66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2023-02-25T17:49:38Z",
    "title_canon_sha256": "bbf644779cc481c424839160303dd674fd6c8e5a6c6163ac48ac7c9aae7fbb74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.13128",
    "kind": "arxiv",
    "version": 1
  }
}