[pythondz]

The article is about blockchain technology (the title is misleading). So the append-only feature is implied, at least I hope so.

[scprodigy]

Guess the question is why you want a network of nodes, all of which may append a fake record, if you only want no one to change the data.

[CyberDildonics]

No can append a fake record without the matching private key needed to sign it.

[scprodigy]

Yes, the point is that decentralization consensus doesn't help.

[CyberDildonics]

Now you're moving the goal posts. It does help because it adding or removing from the chain will be noticed.