Pith Number

pith:U6LW6GOR

pith:2018:U6LW6GORHFAYQEXIZJWHMOJMUL

not attested not anchored not stored refs pending

A Primal-Dual Algorithm with Line Search for General Convex-Concave Saddle Point Problems

Erfan Yazdandoost Hamedani, Necdet Serhat Aybat

arxiv:1803.01401 v5 · 2018-03-04 · 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{U6LW6GORHFAYQEXIZJWHMOJMUL}

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	2026-07-05T01:44:44.006787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7976f19d139418812e8ca6c76392ca2ecd9c7f321505205a037fb26c0373d8d

Aliases

arxiv: 1803.01401 · arxiv_version: 1803.01401v5 · doi: 10.48550/arxiv.1803.01401 · pith_short_12: U6LW6GORHFAY · pith_short_16: U6LW6GORHFAYQEXI · pith_short_8: U6LW6GOR

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/U6LW6GORHFAYQEXIZJWHMOJMUL \
  | 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: a7976f19d139418812e8ca6c76392ca2ecd9c7f321505205a037fb26c0373d8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f967e2abc52099372d0450e0fc85adc0755939f2d21987566d124514ba6a0f80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-03-04T18:43:13Z",
    "title_canon_sha256": "67b5ce5f0f77a220b9693fd8253686ec69a84b51bb08c8198ffd7ca4f18d183c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.01401",
    "kind": "arxiv",
    "version": 5
  }
}