Support for Multiple block chain

Simple suggestion : Maybe we should not tie utopian to steem so much because there are other fish in the sea? Maybe we want to be able to post short ideas that can be edited after a month and that would be better suited to another chain. We will want to consider this and create an abstraction away from steem in utopian.

Here are some possible alternatives :

• ADA based on cardano
  
• https://storj.io/ a java script based tool with a storage lib
  
• https://www.openchain.org/ that uses protocol buffers to define the transactions
• https://www.multichain.com/ "key-value, time series or identity databases on a blockchain", see datastreams
• filecoin https://filecoin.io/ is based on the InterPlanetary_File_System
• ShiftNRG https://www.shiftnrg.org/about/ seems similar to steemit
• Decent https://decent.ch/ block chain content distribution
• Archain https://www.archain.org/ internet archive
• Bluezelle https://bluzelle.com/
• Siacoin https://github.com/NebulousLabs/Sia

I also found this good article while reading, this one talks about

See also Distributed Internet Backup System