Piece de Resistance - Seven Images Are Worth Digits

Question

Seven Images Are Worth Digits

_{This puzzle is part of the "Piece de Resistance" series. Go back to Part 1 (Ace) for the story.
Ace Two Three Four Five Six Seven ...}

Another colourful piece of work, this time on a white background, a bit more stretchy...

Answer 1

The following is my somewhat crazy interpretation of the rebus, which is either correct or way off:

First image:

The logo for Dash cryptocurrency, which I interpret as "-".

Second image:

A picture of iodine, which I found with a reverse image search that led me to this website which has the same image. I interpret this to be "i" which is iodine's chemical symbol.

Third image:

This shows a chord with three g notes, but only the bottom note is highlighted. I interpret this as low g, or stylistically: "log".

First image inside parentheses:

Dash from the Incredibles movie. I interpret this also as "-".

Second image inside parentheses:

The right part of a bone. I interpret this to be "one".

Putting it all together:

You get $-i\log(-1)$. It turns out that $\log(-1) = i\pi$, so substituting, you get $-i*i\pi$. Now, because $i*i = -1$, the expression simply becomes $\pi$. So I think the answer to the rebus is pi, which the title hints at because it has "digits".