Video can be found [HERE](https://www.youtube.com/watch?v=LOgJvwdJ_5A).

Address of beneficiary can be found in the video description on Youtube. 

Super complete video tutorial explaining how to create an account on Polkadot.js Apps, including seed, json file explanation and the link between Apps and the Polkadot extension. 

https://twitter.com/ruitao_su/status/1208305894083022848

For video tutorial in Spanish: Creating an account on Kusama and restoring the account using Polkadot.js Apps