Pith Number

pith:QZEQBCGY

pith:2021:QZEQBCGYF6HQACV33PG3JHZDH3

not attested not anchored not stored refs pending

Proximal Gradient Descent-Ascent: Variable Convergence under K{\L} Geometry

Tengyu Xu, Yingbin Liang, Yi Zhou, Ziyi Chen

arxiv:2102.04653 v2 · 2021-02-09 · math.OC · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QZEQBCGYF6HQACV33PG3JHZDH3}

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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

First-Order Methods for Solving Convex (Strongly) Concave Minimax Problems with Functional Constraints

Receipt and verification

First computed	2026-07-05T02:16:01.860125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86490088d82f8f000abbdbcdb49f233ed94d5da7e3df2f7f3e5e65b74a6713ba

Aliases

arxiv: 2102.04653 · arxiv_version: 2102.04653v2 · doi: 10.48550/arxiv.2102.04653 · pith_short_12: QZEQBCGYF6HQ · pith_short_16: QZEQBCGYF6HQACV3 · pith_short_8: QZEQBCGY

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/QZEQBCGYF6HQACV33PG3JHZDH3 \
  | 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: 86490088d82f8f000abbdbcdb49f233ed94d5da7e3df2f7f3e5e65b74a6713ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ae050b9a1c868f1778b47c8dac8a3892ab960a951d2276a386689231befa2ac",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2021-02-09T05:35:53Z",
    "title_canon_sha256": "3361e9ae325b51933a1391e2ee9d544482ae14811f127cfb495707c5d197b759"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.04653",
    "kind": "arxiv",
    "version": 2
  }
}