176 year old deed to the farm: Ink on a sheepskin, and it's still valid. Which blockchain solutions will still be operating 176 years from now?

About 20 years ago, I visited a small farm in rural Ohio. It was about 200 acres of land that had been owned by the same family since 1845. The document that granted the deed to the land was ink written on a sheepskin. The deed was created/issued in 1845.

For 176 years, that sheepskin deed has been a legal document. This is the time scale that we need to consider when choosing blockchain solutions and investments moving forward.

Which of the blockchain real estate transaction solutions will still be functioning in the year 2197?

Which of the competing blockchain solutions will offer the same security for 176 years as ink on a framed sheepskin?

Almost 2,000 companies were building cars in the US in the early 1900's. Just a handful survive 120 years later. The same shakeout will happen in blockchain. Most will collapse. A handful will survive long term.

Which blockchain solutions are right now the Ford Motors of 1905? Answer that question and you'll be a happy investor in or user of blockchain.