The binary code displayed alongside Turing on the back of the note is based on Turing’s date of birth, 23rd June 1912, given as a binary representation of the number 19120623.

Which villain can be spotted hiding in the following days from history?

Solution

You just need to look up the following dates and put them in the required format.

1. The US House of Representatives votes to call for Mike Pence to invoke the 25th Amendment
2. The Copenhagen Summit begins, aiming to address climate change
3. Princess Margaret is born
4 Anwar Sadat is elected president of Egypt
5. Peadar Macken. who was killed during the Easter Rising, is born
6. Lala Lajpat Rai – “The Lion of Punjab” – is born
7. German WWII fighter ace Gerhard Barkhorn dies
8. Bletchley Park codebreaker Joan Clarke is born
9. French writer and salonniére Marie-Jeanne L’Héritier de Villandon dies
10. A communications failure results in the Esmond Train Wreck

You should get

20210112
20091207
19300821
19701015
18780629
18650128
19830111
19170624
17340224
19030128

Then just convert each of these to base-2 as hinted in the question to get:

1001101000110000111000000
1001100101001000101000111
1001001101000000111010101
1001011001001110100010111
1000111101001000111010101
1000111001001010000010000
1001011101001010101011111
1001001001000010101000000
1000010001001011101000000
1001000100110000001110000

Now the tricky bit. Put all the numbers in a grid a look for a pattern. You could colour all the squares with a “1” in black:

The answer is CRUELLA.