Pith Number

pith:JS2IQSLL

pith:2024:JS2IQSLLWYXBB7NJQVVLRB7GQO

not attested not anchored not stored refs pending

$\ell_1$-norm rank-one symmetric matrix factorization has no spurious second-order stationary points

Anthony Man-Cho So, Jiewen Guan

arxiv:2410.05025 v1 · 2024-10-07 · 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{JS2IQSLLWYXBB7NJQVVLRB7GQO}

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	2026-07-05T09:17:00.261651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cb488496bb62e10fda9856ab887e683afe50f74405884c31cf96cf26bb02e25

Aliases

arxiv: 2410.05025 · arxiv_version: 2410.05025v1 · doi: 10.48550/arxiv.2410.05025 · pith_short_12: JS2IQSLLWYXB · pith_short_16: JS2IQSLLWYXBB7NJ · pith_short_8: JS2IQSLL

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/JS2IQSLLWYXBB7NJQVVLRB7GQO \
  | 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: 4cb488496bb62e10fda9856ab887e683afe50f74405884c31cf96cf26bb02e25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f34d237ce884bb1aa6eb31842e2773eca82570a0110c264c49bad245b99602bc",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2024-10-07T13:25:37Z",
    "title_canon_sha256": "67935020a4e8822bce2dc6f8923725b236d956efd31fc4ada36d5f5e5c52dfb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2410.05025",
    "kind": "arxiv",
    "version": 1
  }
}