Decentralized consistent data network

A decentralized consistent data network is a decentralized network that consists of multiple data nodes that link each other in a way, that the data where the links point to stays consistent even when the network develops over time and multiple parties (including some potentially untrustworthy) are involved in the maintenance of the network. Additionally it should be possible to store the data of the network redundant on many involved servers.

The internet is a decentralized network which is not consistent. When some website contains a link to an other website it is not guarantied that the content of this other website always stays the same.

One approach to create a decentralized consistent data network is the dunin-network.

This question asks what functionalities would be useful for a decentralized consistent data network.