update circuit proof to be private witness & commoncircuitdata constant

go.mod

@@ -1,10 +1,10 @@
 module github.com/succinctlabs/gnark-plonky2-verifier
 
-go 1.20
+go 1.24.4
 
 require (
-	github.com/consensys/gnark v0.9.1
-	github.com/consensys/gnark-crypto v0.12.2-0.20231013160410-1f65e75b6dfb
+	github.com/consensys/gnark v0.13.0
+	github.com/consensys/gnark-crypto v0.18.0
 	github.com/consensys/gnark-ignition-verifier v0.0.0-20230527014722-10693546ab33
 )
 

verifier/util.go

@@ -9,11 +9,9 @@ import (
 
 type ExampleVerifierCircuit struct {
 	PublicInputs            []gl.Variable                     `gnark:",public"`
-	Proof                   variables.Proof                   `gnark:"-"`
-	VerifierOnlyCircuitData variables.VerifierOnlyCircuitData `gnark:"-"`
-
-	// This is configuration for the circuit, it is a constant not a variable
-	CommonCircuitData types.CommonCircuitData
+	Proof                   variables.Proof                   `gnark:",secret"`
+	VerifierOnlyCircuitData variables.VerifierOnlyCircuitData `gnark:",secret"`
+	CommonCircuitData       types.CommonCircuitData           `gnark:",-"`
 }
 
 func (c *ExampleVerifierCircuit) Define(api frontend.API) error {