Mikoshi Cores
Two rows of cores numbered 0-7. The left side is surrounded in blue squares, while the right is surrounded in red. A judgment card split down the middle is nestled behind them, with an overwhelming sense of symmetry/asymmetry at play.
The Strange Symbol
I've traced the symbol that appears on each of the cores here for easier viewing:
The Ambassadors (Holbein)
The symbol upon initial inspection seems rather tall. I've seen stretched symbols before in the world of art - an example being "The Ambassadors".
Processing the Symbol
By viewing the core symbol in the same way, we can attempt to destretch it and analyze it further:
Ultimately it seems that these symbols are pointing to the hidden "Don't Fear (The Reaper)" ending existing, by expressing 4 pyramids instead of the 3 we knew about prior to this ending path coming to light.
Or, it could be as simple as stemming from an 8 bit 6502 system.
Similar Structures
Mega Buildings
The cores are very similar in architecture to the mega buildings that dot the landscape of Night City. There are 8 cores, and there are 8 mega buildings that are not inaccessible.
Arasaka Estate
The heated outdoor seating area at the Arasaka Estate also shares some very notable architectural similarities with the cores. Seeing a fire underneath the obilisk reminds me that we "have a city to burn".