This is a very interesting implementation. Vechain also has a similar solution, their system however is different in some ways. The biggest difference is that vechain charges enterprises gas(vethor) to write to the blockchain, IOTA doesnt charge anything to write to the tangle. I wonder if enterprises would prefer the free version (IOTA), or the hybrid solution (permissionless,permissioned) by Vechain. Both have their advantages and disadvantages, but these two projects are by far the best ones that are working towards building the future. Competetion is also a key in improving the product, so i am very excited to see how this develops.