Would anyone buy a house if the proof of ownership was a URL to JSON file on a server you didn't control, with no regulation of the blockchain that the "proof"

Would anyone buy a house if the proof of ownership was a URL to JSON file on a server you didn't control, with no regulation of the blockchain that the "proof" resides on? I will genuinely put effort in to starting a company that provides a blockchain proof of real estate ownership if this ever happens, just so I can fraudulently sell everyone's houses while they live in them after a few years. It'd be hilarious.