You have the option to share your interpretation of how the host is resolved (e.g.,
localhost always resolves to
127.0.0.1) but the resolution is not canonically enforced (e.g., someone else can map
localhost to any arbitrary IP address).
Hosts in a public subscription can be considered Canonically unique host's within the @I2P network but, ultimately, you are free to re-define them as you wish.