No, the governments themselves did not encode their peace agreement into the "world's largest supercomputer," but CoinDesk Korea reports that 27-year-old South Korean game developer Ryu Gi-hyeok published the Panmunjom Declaration on the ethereum blockchain in both Korean and English.

"Although I was not interested in politics, I was overwhelmed by watching the summit. I just thought it was too long for the South and the North to give each other one step and listen to each other," Ryu told the publication, according to a rough translation. "After finding out what I could do as a developer, I found the Panmunjom Declaration from the Blue House homepage and recorded it on the Ethereum blockchain."