The object being tested is not a ledger balance in isolation. It is the chain of identifiable states around that balance: a source record arrives, a preparer interprets permitted fields, a posting is made, a reviewer checks the work, and a correction can be connected to the original decision. The question is whether that chain gives an owner enough context to reconstruct what happened without asking the preparer to remember the history.
This distinction matters in outsourced bookkeeping. A remote team can post from a bank feed, invoice queue, payroll report, or client-approved schedule, but the source owner may be elsewhere and the reviewer may work in another time window. Lineage makes a handoff inspectable. It does not authorize a preparer to decide accounting policy, approve a payment, or certify a financial statement.