A lot of (manual) work went into making this simple demo happen.<p>These are some interesting reflections on the present state of the tech by Gregory Maxwell:<p><a href="https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;Bitcoin&#x2F;comments&#x2F;47rk85&#x2F;first_successful_zeroknowledge_contingent_payment&#x2F;d0f69ml" rel="nofollow">https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;Bitcoin&#x2F;comments&#x2F;47rk85&#x2F;first_succe...</a><p>I suspect there&#x27;s a great opportunity here for startups. The theory is sound, and tooling (UX) needs to be built around it.