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Isn't it subjective immutability? Your transaction might disappear from the history if the view changes to have some other branch be the accepted one
by 8note 4y ago
Isn't it subjective immutability?
Your transaction might disappear from the history if the view changes to have some other branch be the accepted one
- tromp 4y agoThe PoW on top of a tx produces immutability in the sense of a minimum cost imposed on a rewriting of that tx. If no attacker is willing to bear that cost, then the objective longest chain rule (i.e. most cumulative difficulty) will preserve the history up to that tx. Without PoW you have no objective way to determine the true history.