Pith Number

pith:MEJ4XNFC

pith:2018:MEJ4XNFCER5CGOGGHS77BBQJMH

not attested not anchored not stored refs pending

Gradient Primal-Dual Algorithm Converges to Second-Order Stationary Solutions for Nonconvex Distributed Optimization

Jason D. Lee, Meisam Razaviyayn, Mingyi Hong

arxiv:1802.08941 v1 · 2018-02-25 · math.OC · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MEJ4XNFCER5CGOGGHS77BBQJMH}

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	2026-05-18T00:22:35.985371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6113cbb4a2247a2338c63cbff0860961d5c3af1d40ae17d5aaf4c8693ca65d5a

Aliases

arxiv: 1802.08941 · arxiv_version: 1802.08941v1 · doi: 10.48550/arxiv.1802.08941 · pith_short_12: MEJ4XNFCER5C · pith_short_16: MEJ4XNFCER5CGOGG · pith_short_8: MEJ4XNFC

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/MEJ4XNFCER5CGOGGHS77BBQJMH \
  | 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: 6113cbb4a2247a2338c63cbff0860961d5c3af1d40ae17d5aaf4c8693ca65d5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a377aae2b922c089994e212c7bec8d44ad3ca2d862a46e46f0b2b84366a454e6",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-02-25T01:59:05Z",
    "title_canon_sha256": "8362feaef563bc0ffcaefa6e53cfda495e1ceec6be8f72bbe2f54bae203b303e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08941",
    "kind": "arxiv",
    "version": 1
  }
}