Your backend code is a black box. It doesn't have to be.

Your API takes inputs and returns outputs. The logic in between? Nobody outside your team can verify it. Regulators read documentation you wrote about it. Partners call your endpoint and trust the response. Users don't even get that. This has worked for decades. But there's a growing category of backend logic where "trust us" isn't enough. Scoring algorithms, compliance checks, eligibility rules, validation pipelines. Anywhere someone needs to independently confirm that your code does what you