# Secure Off-chain Data Availability for Rollups - John Adler

- Channel: [Ethereum Denver](https://streameth.org/ethereum-denver)
- Date: 2022-10-07
- Duration: 19:16
- Watch: https://streameth.org/watch/yt-f88tGRBimmE
- YouTube: https://www.youtube.com/watch?v=f88tGRBimmE