Pith Number

pith:P25KA4X3

pith:2017:P25KA4X336PCBQ672DRCNBMLZJ

not attested not anchored not stored refs pending

No Spurious Local Minima in Nonconvex Low Rank Problems: A Unified Geometric Analysis

Chi Jin, Rong Ge, Yi Zheng

arxiv:1704.00708 v1 · 2017-04-03 · cs.LG · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P25KA4X336PCBQ672DRCNBMLZJ}

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	2026-05-18T00:47:21.535953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ebaa072fbdf9e20c3dfd0e226858bca765a3ae0d9b84f0acb08da8407669e6c

Aliases

arxiv: 1704.00708 · arxiv_version: 1704.00708v1 · doi: 10.48550/arxiv.1704.00708 · pith_short_12: P25KA4X336PC · pith_short_16: P25KA4X336PCBQ67 · pith_short_8: P25KA4X3

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/P25KA4X336PCBQ672DRCNBMLZJ \
  | 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: 7ebaa072fbdf9e20c3dfd0e226858bca765a3ae0d9b84f0acb08da8407669e6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7781292140e962ec79cafc1e9e2618dd054e856966ffb18ba45bab767eaacee",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2017-04-03T17:49:02Z",
    "title_canon_sha256": "aacb20c1995f06bdaca476725172643bf18a93d2176224c3d7fe00ea52cb6000"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00708",
    "kind": "arxiv",
    "version": 1
  }
}