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sportsMEDIUM2026-05-05 19:35 UTC

Why I Made the Ledger Refuse Single Rows

The bug I kept designing around was not "wrong penalty amount." Wrong amounts are visible. A supplier sees a credit note for EUR 8400, checks the contract, and pushes back. The operator can investigate. The trail exists. The quieter failure is a penalty row with no mirror. One side of the system say

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