CAIN-42 CAIN StudioThe niche: formal verification for critical small functions
Teams whose small functions carry big consequences: fees, limits, permissions, eligibility rules. Also teams who let AI write such functions and want proof, not hope.
Why this niche exists now
- AI writes more business-rule code; a subtle edge case can be expensive.
- Formal verification used to need specialists; this makes one small slice accessible.
- Buyers in finance and security value "proved" over "tested".
What people use today, and where it falls short
| What teams do today | Where it falls short |
|---|---|
| Unit tests | Only the inputs someone thought of. |
| Property-based testing | Random inputs; better, but still a sample. |
| Hire a formal-methods expert | Rare and expensive. |
What makes VeriCoding (Z3) different
- Every input, not a sample.
- A concrete counterexample when it fails.
- "Could not decide" is never a pass.
- Tested by us with a fuzzer that found and fixed 74 wrong PROVED answers on 2026-11-02.
How big is the opportunity?
Do not quote market-size statistics on a call. Most published figures are surveys or vendor estimates, and a smart buyer will ask for the source. Size the opportunity per prospect instead, with these questions:
- Which functions would cost you money or trust if they had an edge-case bug?
- Are they small and integer-based (fees, limits, counters, permissions)?
- Who writes them: people or AI?
If the honest answers are "no" or "not yet", they are not a buyer today. Note it and move on; that is good selling, not failure.
Explain the niche in 30 seconds
Teams whose small functions carry big consequences: fees, limits, permissions, eligibility rules. Also teams who let AI write such functions and want proof, not hope.
VeriCoding mathematically proves a small function is correct for every possible input, or shows the exact input that breaks it.
Practise saying this out loud until you can do it without reading. Then say it in your own words.
Words your buyers use
These are the phrases people in this niche type into search engines and use in posts and job ads. Use them to find prospects (page 3) and to talk their language:
formal verification edge case bugs prove correctness Z3 solver business rule bugs
Sell it together with
Buyers rarely have just one problem. When this product fits, these often fit too:
| Product | Why it goes together |
|---|---|
| KEYSTONE | the fix-and-prove loop |
| FALSEWORK | find suspicious functions first |
| Deterministic math gates | other deterministic maths |
Rule: open with one product. Mention a second only after the first is agreed.
Next: who buys and where to find them →
FIRME AI CORPORATION · CAIN-42 is a Byzantine trust fabric. Numbers marked "our own check" were run by us, not by an independent party. Nothing on these pages is a certification.