Because every node in the Bitcoin blockchain does exactly the same work processing the entire blockchain, and has to host all of the information across the entire network at once, the Bitcoin blockchain doesn´t scale to the volume of transactions required to support an enterprise-sized network. Synereo’s solution to this challenge? The creation of a sharded, composable proof-of-stake-based Blockchain – running, concurrently, at much faster rates.
The Synereo protocol provides the means to distribute the blockchain into smaller, faster, and more easily manageable pieces called shards. These small shards can be joined together into bigger shards, and those into bigger shards, still. This means that not every node in the network has to see and validate the whole state of the blockchain, so the extension of the blockchain can proceed at different locations, combining as needed, just-in-time. This way, Synereo’s Blockchain is truly decentralized and distributed rather than simply being massively replicated across the network.
Source: Synereo website