diff --git a/plonky2_verifier/challenger.go b/plonky2_verifier/challenger.go
index ccf5063..1c04e0f 100644
--- a/plonky2_verifier/challenger.go
+++ b/plonky2_verifier/challenger.go
@@ -99,9 +99,16 @@ func (c *ChallengerChip) GetHash() Hash {
 	return [4]F{c.GetChallenge(), c.GetChallenge(), c.GetChallenge(), c.GetChallenge()}
 }
 
-func (c *ChallengerChip) GetFriChallenges(commitPhaseMerkleCaps []MerkleCap, finalPoly PolynomialCoeffs, powWitness F, degreeBits uint64, config FriConfig) FriChallenges {
+func (c *ChallengerChip) GetFriChallenges(commitPhaseMerkleCaps []MerkleCap, finalPoly PolynomialCoeffs, powWitness F, degreeBits uint64, config struct {
+	RateBits          uint64 "json:\"rate_bits\""
+	CapHeight         uint64 "json:\"cap_height\""
+	ProofOfWorkBits   uint64 "json:\"proof_of_work_bits\""
+	ReductionStrategy struct {
+		ConstantArityBits []int "json:\"ConstantArityBits\""
+	} "json:\"reduction_strategy\""
+	NumQueryRounds uint64 "json:\"num_query_rounds\""
+}) FriChallenges {
 	numFriQueries := config.NumQueryRounds
-	ldeSize := 1 << (degreeBits + config.RateBits)
 	friAlpha := c.GetExtensionChallenge()
 
 	var friBetas []QuadraticExtension
@@ -118,9 +125,6 @@ func (c *ChallengerChip) GetFriChallenges(commitPhaseMerkleCaps []MerkleCap, fin
 	friPowResponse := c.poseidonChip.HashNoPad(powInputs)[0]
 	friQueryIndices := c.GetNChallenges(numFriQueries)
 
-	// need to modulo lde size on fri query indices
-	_ = ldeSize
-
 	return FriChallenges{
 		FriAlpha:         friAlpha,
 		FriBetas:         friBetas,
diff --git a/plonky2_verifier/verifier.go b/plonky2_verifier/verifier.go
index 8e2e9a6..7506aab 100644
--- a/plonky2_verifier/verifier.go
+++ b/plonky2_verifier/verifier.go
@@ -1,8 +1,10 @@
 package plonky2_verifier
 
 import (
+	"fmt"
 	. "gnark-ed25519/field"
 	"gnark-ed25519/poseidon"
+	"gnark-ed25519/utils"
 
 	"github.com/consensys/gnark/frontend"
 )
@@ -17,12 +19,14 @@ func (c *VerifierChip) GetPublicInputsHash(publicInputs []F) Hash {
 	return c.poseidonChip.HashNoPad(publicInputs)
 }
 
-func (c *VerifierChip) GetChallenges(proofWithPis ProofWithPublicInputs, publicInputsHash Hash, commonData CommonCircuitData) ProofChallenges {
+func (c *VerifierChip) GetChallenges(proofWithPis ProofWithPublicInputs, publicInputsHash Hash, commonData CommonCircuitDataRaw) ProofChallenges {
 	config := commonData.Config
 	numChallenges := config.NumChallenges
 	challenger := NewChallengerChip(c.api, c.field, c.poseidonChip)
 
-	challenger.ObserveHash(commonData.CircuitDigest)
+	var circuitDigest Hash
+	copy(circuitDigest[:], utils.Uint64ArrayToFArray(commonData.CircuitDigest.Elements))
+	challenger.ObserveHash(circuitDigest)
 	challenger.ObserveHash(publicInputsHash)
 	challenger.ObserveCap(proofWithPis.Proof.WiresCap)
 	plonkBetas := challenger.GetNChallenges(numChallenges)
@@ -34,8 +38,6 @@ func (c *VerifierChip) GetChallenges(proofWithPis ProofWithPublicInputs, publicI
 	challenger.ObserveCap(proofWithPis.Proof.QuotientPolysCap)
 	plonkZeta := challenger.GetExtensionChallenge()
 
-	_, _, _, _ = plonkAlphas, plonkBetas, plonkGammas, plonkZeta
-
 	challenger.ObserveOpenings(proofWithPis.Proof.Openings.ToFriOpenings())
 
 	return ProofChallenges{
@@ -47,12 +49,14 @@ func (c *VerifierChip) GetChallenges(proofWithPis ProofWithPublicInputs, publicI
 			proofWithPis.Proof.OpeningProof.CommitPhaseMerkleCaps,
 			proofWithPis.Proof.OpeningProof.FinalPoly,
 			proofWithPis.Proof.OpeningProof.PowWitness,
-			commonData.DegreeBits, config.FriConfig,
+			commonData.DegreeBits,
+			config.FriConfig,
 		),
 	}
 }
 
-func (c *VerifierChip) Verify(proofWithPis ProofWithPublicInputs, verifierData VerifierOnlyCircuitData, commonData CommonCircuitData) {
+func (c *VerifierChip) Verify(proofWithPis ProofWithPublicInputs, verifierData VerifierOnlyCircuitData, commonData CommonCircuitDataRaw) {
 	publicInputsHash := c.GetPublicInputsHash(proofWithPis.PublicInputs)
-	_ = c.GetChallenges(proofWithPis, publicInputsHash, commonData)
+	proofChallenges := c.GetChallenges(proofWithPis, publicInputsHash, commonData)
+	fmt.Printf("%+v\n", proofChallenges)
 }
diff --git a/plonky2_verifier/verifier_test.go b/plonky2_verifier/verifier_test.go
new file mode 100644
index 0000000..e9760b6
--- /dev/null
+++ b/plonky2_verifier/verifier_test.go
@@ -0,0 +1,37 @@
+package plonky2_verifier
+
+import (
+	. "gnark-ed25519/field"
+	. "gnark-ed25519/poseidon"
+	"testing"
+
+	"github.com/consensys/gnark/frontend"
+	"github.com/consensys/gnark/test"
+)
+
+type TestVerifierCircuit struct{}
+
+func (circuit *TestVerifierCircuit) Define(api frontend.API) error {
+	field := NewFieldAPI(api)
+	poseidonChip := NewPoseidonChip(api, field)
+	verifierChip := VerifierChip{api: api, field: field, poseidonChip: *poseidonChip}
+	proofWithPis := DeserializeProofWithPublicInputs("./data/proof_with_public_inputs.json")
+	commonCircuitData := DeserializeCommonCircuitData("./data/common_circuit_data.json")
+	verfierOnlyCircuitData := DeserializeVerifierOnlyCircuitData("./data/verifier_only_circuit_data.json")
+	verifierChip.Verify(proofWithPis, verfierOnlyCircuitData, commonCircuitData)
+	panic("look at stdout")
+	return nil
+}
+
+func TestVerifierWitness(t *testing.T) {
+	assert := test.NewAssert(t)
+
+	testCase := func() {
+		circuit := TestVerifierCircuit{}
+		witness := TestVerifierCircuit{}
+		err := test.IsSolved(&circuit, &witness, TEST_CURVE.ScalarField())
+		assert.NoError(err)
+	}
+
+	testCase()
+}