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Sep 26, 2025
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feat(entropy): add entropy commit and reveal diagram #857

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12 changes: 12 additions & 0 deletions pages/entropy/protocol-design.mdx
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@@ -1,3 +1,6 @@
import Image from "next/image";
import CommitRevealDiagram from "../../images/entropy/commit_and_reveal.png";

# Protocol Design

The Entropy protocol implements a secure 2-party random number generation procedure. The protocol
Expand All @@ -15,6 +18,15 @@ Honesty means that (1) they draw their value at random, and (2) for A, they keep
step 4. Thus, neither party needs to trust the other -- as long as they are themselves honest, they can
ensure that the result $r$ is random.

<br />

<Image
src={CommitRevealDiagram}
alt="Entropy Protocol Commit and Reveal Flow"
sizes="100%"
placeholder="blur"
/>

Entropy implements a version of this protocol that is optimized for on-chain usage. The
key difference is that one of the participants (the provider) commits to a sequence of random numbers
up-front using a hash chain. Users of the protocol then simply grab the next random number in the sequence.
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