Pith Number

pith:XZ7LSYVJ

pith:2018:XZ7LSYVJ5TRBF34R3PYTMQZKXU

not attested not anchored not stored refs pending

Gradient Descent with Random Initialization: Fast Global Convergence for Nonconvex Phase Retrieval

Cong Ma, Jianqing Fan, Yuejie Chi, Yuxin Chen

arxiv:1803.07726 v2 · 2018-03-21 · stat.ML · cs.IT · cs.LG · cs.NA · math.IT · 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{XZ7LSYVJ5TRBF34R3PYTMQZKXU}

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	2026-05-17T23:43:33.375873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be7eb962a9ece212ef91dbf136432abd285dade60d73cada2511e3a72961b6fc

Aliases

arxiv: 1803.07726 · arxiv_version: 1803.07726v2 · doi: 10.48550/arxiv.1803.07726 · pith_short_12: XZ7LSYVJ5TRB · pith_short_16: XZ7LSYVJ5TRBF34R · pith_short_8: XZ7LSYVJ

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/XZ7LSYVJ5TRBF34R3PYTMQZKXU \
  | 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: be7eb962a9ece212ef91dbf136432abd285dade60d73cada2511e3a72961b6fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b420839d581356e357e7bd59e4c7c7541c96709ff168422cf6d21b173b604dd",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "cs.NA",
      "math.IT",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-03-21T03:14:16Z",
    "title_canon_sha256": "02d63f9d26d86702dcf544008bce3552bbfb7a64375472794b57b27aac837279"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07726",
    "kind": "arxiv",
    "version": 2
  }
}