Toward provably private learning from federated data

# Dev Prompt (generated from DigitalScope Intelligence signal)
Context:
- 标题：Toward provably private learning from federated data
- 来源：Google Research Blog
- 原文：https://research.google/blog/toward-provably-private-learning-from-federated-data/
- 标签：privacy, federated-learning, differential-privacy, mobile-systems

Task: Based on the signal above, outline how a developer could practically
explore or apply this development (e.g. a prototype, migration note, or
evaluation checklist). Cite the original source when referencing facts.

> Template-generated from signal metadata by DigitalScope Intelligence (not AI-written).

API: /api/devprompt/431