[elzr]

How can you get an irrevocable ledger without solving the "no trust" problem?

[skybrian]

You have a lot of people watching the trusted source to make sure that it's append-only and follows the rules for appends. It's a reputation thing; not impossible but it will be detected.

[davrosthedalek]

Isn't reputation trust-by-historical-evidence?

[ajross]

The same way you know your copy of the kernel tree is authentic.

[kobeya]

Because my distro signed it? That is pure centralized trust.