The above is what I have set up for some organisations who want to keep data for thousands of years.

There are other bits to the process, like every 10-30 years, repeat the process with the new data and the old data. This time, the 'old' data will be much smaller compared to the storage mediums, so keep that data uncompressed, preferably unencrypted, and un-erasure coded in every geographic location. That removes many barriers to access the data, and increases the chances someone that finds it in 200 years bothers recovering the data.

Sadly in the future world there is a high chance some of the data is copyright, illegal knowledge or gdpr-impacted and all records need to be erased. There isn't really a good solution to that. It's almost impossible to protect against future humans wanting your data gone.