plonky2-verifier/commentary/README.md

Commentary on Plonky2

These are my notes describing the inner workings of the Plonky2 proof system by Polygon Zero. As there is basically no existing documentation, this is a work of reverse-engineering.

A good place to start is Overview.md.

Then more details can be found at:

• Layout.md - Layout of all the columns
• Gates.md - The different "custom gates" present in the Plonky2 code base
• Selectors.md - Gate selectors and constants
• GateConstraints.md - Gate constraint equations
• Wiring.md - The permutation argument
• Poseidon.md - Poseidon hash function
• FRI.md - FRI commitment scheme
• Challenges.md - Fiat-Shamir challenges
• Protocol.md - Overview of the protocol
• Lookups.md - Lookup gates and the lookup argument
• Recursion.md - Recursive proofs