Copyrighties

[sonicchaos1993]

Yes, you didn't ask for or receive permission to use my artwork! You can't use things made by other people without their permission, it's actually against the law.
If the resource is copyrighted.

[Jamul]

Any work of art is copyrighted upon creation. No actions need to be taken.

[SpiderPumpkin]

Any work of art is copyrighted upon creation. No actions need to be taken.
I think he's talking about things in the public domain.

[Jamul]

Actions do need to be taken to put something into the public domain (or an incredible number of years need to pass). Things are not free for use unless they are very old or the creator has explicitly declared them to be.

[SpiderPumpkin]

Actions do need to be taken to put something into the public domain (or an incredible number of years need to pass). Things are not free for use unless they are very old or the creator has explicitly declared them to be.
As far as I recall, nobody ever tried to imply anything else :P (Unless you were just going to mention that since the concept was brought up.)

[ducklegion]

my doodles is copyrighted? 8D