Here's the issue. In a country with a stable, effective government, you don't need a blockchain for this: you can just have a centralized database. In a count

Here's the issue. In a country with a stable, effective government, you don't need a blockchain for this: you can just have a centralized database. In a country without such a government, a blockchain wouldn't help: the government will care more about the large landholders than about the blockchain records, and will have little incentive to enforce the latter. (Also: I won't look forward to the day when some hacker figures out how to get into a bunch of farmers' crypto wallets and takes all their land. If the government doesn't respect the hackers' claims, then the blockchain isn't really the source of truth; if it does, then a bunch of people's lives are destroyed.)