None of this prevents or exposes tampering except possibly a picture of the random air bubbles in the ice, which only provides exactly the same protection as the glitter and by the same mechanism. Everything else is just a lot of silly theater.
Might be countered by supercooled water if the crystallization can be made to look natural.
Supercooled water was something I thought of later, but I didn't think about the presence / lack of bubbles from normal freezing.