Content Addressable Files over Bitcoin
C:// is an immutable URI scheme for referencing B:// protocol files, a simple Bitcoin file storage protocol.
The file system is constructed from Bitcoin transactions, and is instantly serviced through HTTP/HTTPS endpoint.
C:// generates filenames by SHA256-hashing the content uploaded through Bitcoin.
This means there's exactly one universal filename per unique content. (Known as Content Addressable Storage)
With B://'s default URI scheme, users can't verify authenticity of the files sent from B:// servers with 100% certainty. You still need to rely on a 3rd party Bitcoin node to verify, which involves trust.
With C://, every file URI is uniquely derived from its contents (not transaction id, but the SHA256 hash of the file buffer itself), so you can be 100% confident of the authenticity of the files you reference using the C:// scheme.
Learn More at https://c.bitdb.network/