Chained Crypto Arts

mera takeru has picked 54 artworks that have been tied to the blockchain over the past 3.5 years, starting in April 2019, and chained them together. Each square artwork is strung together like a block, so this literally represents the "blockchain". And it is worth noting that in this 10-second looping video, one part of one of these artworks gradually changes over 5 seconds and then changes back again over 5 seconds. Can you tell which part of which piece is changing? A blockchain would not miss that small change and would immediately spot the different pieces. This is a challenge to the blockchain by mankind. Look closely.