I'm a little paranoid about being plagiarised.

Let's say I publish music on Youtube (for example) and several blogs. I only publish the audio on a compressed lossy format. I keep safe on my hard drive the lossless audio file. If for any reason someone decides to plagiarise me, can I go to court and support my authorship with those lossless audio files? Because they wouldn't have the lossless audio.

On the other hand, am I already protected by uploading my material to Youtube? If I send a gmail email to myself, does it help? Does private registration services such safe creative help? I know there is no substitute for an official copyright register, but as an artist, I create a lot of Images, Music Demos, Drawings and is economically impossible to register each of my creations.

Finally, If the material I upload contains footage of my face or even only my voice. Would that be enough as a proof? Or maybe should I add image/audio footprints as a protection measure?

I'm a little paranoid about being plagiarized.

Let's say I publish music on Youtube (for example) and several blogs. I only publish the audio on a compressed lossy format. I keep safe on my hard drive the lossless audio file. If for any reason someone decides to plagiarize me, can I go to court and support my authorship with those lossless audio files? Because they wouldn't have the lossless audio.

On the other hand, am I already protected by uploading my material to Youtube? If I send a gmail email to myself, does it help? Does private registration services such safe creative help? I know there is no substitute for an official copyright register, but as an artist, I create a lot of Images, Music Demos, Drawings and is economically impossible to register each of my creations.

Finally, If the material I upload contains footage of my face or even only my voice. Would that be enough as a proof? Or maybe should I add image/audio footprints as a protection measure?