How do I hide an ipfs address or URL?

I think it's not how to hide the address, but how to avoid access to resources after the address is known.Also, as long as a third party can access it over the network, you should consider it difficult to completely delete resources, even if they are not limited to IPFS.

To begin with IPFS-only, the official document has a privacy reference: https://docs.ipfs.tech/accepts/privacy-and-encryption/

If you want to connect to a public network and exchange files, the CID will be known and a third party may pin it.Therefore, the direction is whether you want to take steps such as encryption or create a private network.Moreover, the code is not always exposed.

In general terms, URLs are meant to share resources in the first place, and hiding URLs is not the role of URLs.It is well known to include a password-like string in the URL string to increase the time it takes for a round-robin attack or to implement authentication authorization at the URL reference point.

Supplemental: https://github.com/ipfs-inactive/faq/issues/9 (or