We’ve developed a two-pronged model.

Strict mode means relays must implement the NIPs and their kind numbers. From the panel, you can select which kind numbers you want enabled.

Unlimited mode means that relays will store any kind numbers. Clients do the verification. Relay operators can blacklist certain kind numbers in unlimited mode if they want to narrow it down a bit.

Check out the demo panel at:
https://hornetstorage.net 

 Check out the relay: https://github.com/HORNET-Storage/hornet-storage