Alin Tomescu, Aptos Labs Cryptographer, provides an overview why Aptos Roll, the Aptos Randomness API was developed and what it does. Dive into a real world example of how to implement this simple API call and the measures taken to ensure API Roll is tamper resistant.
00:00:10 - Overview
00:01:00 - Why On-Chain Randomness
00:02:01 - The Randomness API and Move Module
00:03:38 - Randomness Application Example (Raffle)
00:05:38 - How to write randomized dApps (randapps) safely
![](https://i.ytimg.com/vi/CGu05ALsSpE/maxresdefault.jpg)