I'm aware how to use creative commons logo. But I'm searching for a character that I can insert in a caption to notice that the image (in my case) is under creative commons and not under ©, so it should be like a double "c" or something like that. So is there a creative commons analogous symbol of "©" that I can insert like a character?
The ccicons package seems to be what you are looking for. (I've never used it myself though.) With the command
There is also a cclicenses package, but the icons are not as clear nor as up-to-date.