from chainless.io - blockchainless architecture
Due to the inherent limitations in the blockchain technologies, it lacks of real-time validation of transactions, and has the scalability issues. Transaction costs can vary from time to time, and therefore undermine business models in the Internet of Things.
In order to solve these problems, the blockchainless architecture is invented. Blockchainless is referring to “Blockchain without the Blocks and the Chain”. It shares the same underlying principles and the key benefits of blockchains, just without their inherent limitations.