The final claim is accepted only when every statistical source role is present. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

The audit cites source roles, not copied numbers

The final diagram shows only source roles and the accepted word.

sources: microstate, weight, population, fluctuation, balance\hbox{sources: microstate, weight, population, fluctuation, balance}
Role-only statistical auditNumeric source values are hidden from the audit labels.microstate sourceweight sourcepopulation sourcefluctuation sourcebalance sourceaccepted

The audit accepts only the checked chain

The accepted label is role-only; copied numeric source labels fail.

accepted\hbox{accepted}
Accepted statistical auditEvery role must cite the matching source check.microstate sourceweight sourcepopulation sourcefluctuation sourcebalance sourceaccepted