The main practical example is git. It does have some partial mitigations for fixing its historical record, for example the mailmap file for correcting names and email addresses. And, I suppose in the worst case a project could rebase its entire history to expunge illegal commits.
Fortunately there’s little chance of blockchain as in cryptocurrency succeeding outside the scammers and their marks.
Fortunately there’s little chance of blockchain as in cryptocurrency succeeding outside the scammers and their marks.