Hi Sebastien,
interesting points about the distributed ledgers. i wouldn’t really argue with any of its subsections, but one point that it would make it more unique to me would be the unit of account (token or currency if you like). arguably, Corda is the closest to using the standard fiat currencies instead of tokens, but it, too, would come with the burden of unlimited supply in the form of quantitative easing or whatever spoiling money or inflation is called these days. each new ‘blockchain ledger’ that comes into use and users exchange their assets into only compounds that problem.
thx, greg