"Whatsmore, DIDs have the unique property of enabling the controller to verify ownership of the DID using cryptography." Content-based identifiers (CIDS) for I

"Whatsmore, DIDs have the unique property of enabling the controller to verify ownership of the DID using cryptography." Content-based identifiers (CIDS) for IPFS also verify content with cryptography, so not unique. CIDS are also decentralized. However, the following looks promising: * 4) DID metadata can be discovered (resolvable)."