The standard needs a bit more baking before it's quite ready IMO

https://www.hackerfactor.com/blog/index.php?/archives/1102-C...

https://hackerfactor.com/blog/index.php?/archives/1077-Googl...

https://www.hackerfactor.com/blog/index.php?/archives/1037-C...

https://www.da.vidbuchanan.co.uk/blog/android-c2pa.html