All of these blockchain-based protocols are impractical. Blockchain is wasteful and slow. It may work adequately for a transaction ledger, but it doesn't work for the web's primary purpose of distributing arbitrary information ad-hoc and on-demand.
pagerduty.com moved to Route53, but the TTL on NS records can be very long. Flushing (restarting, ...) whatever can cache DNS records in your infra will help to quickly pick up the new nameservers.
Honestly this thread put a tear into my eyes....I was literally your kid like 15 years ago when i first discovered quick basic on my own as a 10 year old. I feel this so deeply. It was much easier to learn that than anything else I've ever learned since.