Payments and machines
Proving that payment hosts and trading venues answer correctly, and checking the rules small machines run on.
prova
Financial protocol tests, proved
Tests payment hosts, card switches and trading venues over ISO 20022, ISO 8583 and FIX, and proves whether each answer was right, not just well formed.
- Every verdict carries a checked proof
- Built-in simulators, so it is useful on day one
- A headless runner for CI with JUnit reports
PolyForm Small Business free for small businesses; commercial licences available
quorum
Checked rules for small machines
Rules for machines written in plain words, checked against every situation before they run, then decided on an $11 chip with their reasons. Runs on Raspberry Pi Pico 2 and Arduino Uno R4, with a desktop studio.
- Worst-case timing measured on real silicon
- Independent proof checker and SAT cross-check
- Not yet certified for functional safety
PolyForm Noncommercial free for noncommercial use; commercial licences available