daitai · 大体 · algebraic software for people who care

Software
you can prove.

Same input, same output — and you can prove it to an auditor. A language, an algebra, an IDE, and a compliance graph. Built by Code Daimyo.

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Verifiable today

Not promises. Numbers from actual runs.

0
divergences over 500 × 2 replay passes
20 / 20
algebraic invariants passing as a blocking CI gate
4 / 4
parity cases byte-identical to JDK 17 stdout
2
modules published as open source

No customer logos yet — we publish only evidence we can hand over.

Manifesto

Software has become disposable. Frameworks churn every two years. Code is generated faster than it's understood. Compliance is screenshots in a binder.

daitai is a refusal. We believe software deserves the same rigor as mathematics — that a program's behavior should be derivable from its types, that state transitions should compose like equations, that compliance should be a signed graph and not a PDF.

Built by Code Daimyo — a small studio in Sweden — for engineers and organizations who would rather understand their software than just ship it.