Sounds cool in theory, dumb in practice. Ships are registered all over the place, and cargo then goes all over the place, what’s the criteria for getting on the whitelist? And how can you be sure that the country that mined a shipping route is gonna a) keep their word and b) ensure it’s clear for you and only you to traverse? Something more realistic would require an actual meeting and legal agreements, like the grain deal in the Black sea a few years ago