Exciting stuff! I am really curious to see a RFC outlining this — especially the backward compatibility with MD.
I assume AD must have XOR predictability for ‘compatibility’ with MD. E.g. DNS would be impossible without it. Without an option to pre-determine the XOR I see no way one can do high-level communication.
The crux is about whether we want to allow the network/user to delete data. I’ve slowly assumed that data would never be deleted; MD is to have versions and to be addressable per version. It’s only natural that you would call that ‘appendable’, because data isn’t actually deleted/mutated — thus ‘immutable’. What’s in a name?
The points made by several members so far lead me to have mixed feelings about it. @neo puts forward a good case for truly mutable data — and thus deleting data.