Thanks for your answers! About this one: "I'm not aware of any other system can provide the permissionless and censorship-resistant aspects of blockchain while

Thanks for your answers! About this one: "I'm not aware of any other system can provide the permissionless and censorship-resistant aspects of blockchain while still maintaining a coherent, single view of the network, though I admit I'm only loosely familiar with BigchainDB." Maybe you also wanna look at Google Trillian? https://github.com/google/trillian https://github.com/google/trillian