Yes! All information identifying and relating to the sale of a product or sevice is only known and accessible by the respective buyer and seller.
I sell Soap on nostr:nprofile1qqs2xugc5jyguqkj36rk0syv4tmnkjdtmtperttl7x9rqjy3ustdcvcppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qg6waehxw309aek2mnyd96zumn0wdnxcctjv5hxxmmd9uxa0uz8 and seems to be private. However, I am not tech savvy, so don't know if it 100% is. nostr:nprofile1qqsdxm5qs0a8kdk6aejxew9nlx074g7cnedrjeggws0sq03p4s9khmqpz9mhxue69uhkummnw3ezuamfdejj7qgwwaehxw309ahx7uewd3hkctcpzemhxue69uhksctkv4hzucmpd3mxztnyv4mz747p6g5 can you weigh in on this? I also use my own site, and use ⚡which is completely prvt. You are only trusting me with your info for the shipping.