[Chapter-delegates] Blockchain and Food Tracability

[John Levine]

In article <0accf29eeb5c4b7e9012688532f9a7cdbabc778d.camel at isoc.ch> you write:
>Aren't "responsible for blockchain governance" and "proof-of-work"
>diametral opposites?
>With PoW, the goal is that nobody can exert control on the contents of
>the blockchain [1]. To me, this implies that there is no governing body
>who can "fix things" if they are broken.

That's true as far as it goes, but a PoW system makes the often
unrealistic assumption that nobody can control 51% of the miners.
Given the size of some mining pools and the opacity of many mining
operations, that strikes me as a major leap of faith.

You always have to trust someone.  The only question is who.  You will
find that in the outside world, people want the ability to back out
bogus transactions, and the few systems that you can't reverse, like
international bank wires, have horrible fraud and security problems.

The application to food is fairly obvious: when (not if) someone puts
in bogus data, who recognizes it and what do you do about it?

R's,
John