Pith Number

pith:PIJ22EES

pith:2013:PIJ22EESX6MLIB6W7YF6ZZ477K

not attested not anchored not stored refs pending

Optimal Primal-Dual Methods for a Class of Saddle Point Problems

Guanghui Lan, Yunmei Chen, Yuyuan Ouyang

arxiv:1309.5548 v1 · 2013-09-22 · 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{PIJ22EESX6MLIB6W7YF6ZZ477K}

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	2026-05-18T03:12:36.010593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a13ad1092bf98b407d6fe0bece79ffa82a3c0049719f66447d68545f348e848

Aliases

arxiv: 1309.5548 · arxiv_version: 1309.5548v1 · doi: 10.48550/arxiv.1309.5548 · pith_short_12: PIJ22EESX6ML · pith_short_16: PIJ22EESX6MLIB6W · pith_short_8: PIJ22EES

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/PIJ22EESX6MLIB6W7YF6ZZ477K \
  | 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: 7a13ad1092bf98b407d6fe0bece79ffa82a3c0049719f66447d68545f348e848

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ff55a8b9f128d1fe5d9a692ad2c3b8cc79b14295302a71a844a957fd72820ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-09-22T01:35:25Z",
    "title_canon_sha256": "fc6f83b5864cac6158a6a29d3bece181dee7029a747cb9fef5954176b5390789"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5548",
    "kind": "arxiv",
    "version": 1
  }
}