diff --git a/src/air/public_input.cairo b/src/air/public_input.cairo
index 1852e88e7..790a6342a 100644
--- a/src/air/public_input.cairo
+++ b/src/air/public_input.cairo
@@ -1,10 +1,9 @@
 use core::{pedersen::PedersenTrait, hash::{HashStateTrait, HashStateExTrait, Hash}};
 use cairo_verifier::{
     common::{
-        array_extend::ArrayExtend,
-        flip_endianness::FlipEndiannessTrait, array_append::ArrayAppendTrait, hasher::hash,
-        math::{pow, Felt252PartialOrd, Felt252Div}, asserts::assert_range_u128_le,
-        array_print::SpanPrintTrait, hash::hash_felts,
+        array_extend::ArrayExtend, flip_endianness::FlipEndiannessTrait,
+        array_append::ArrayAppendTrait, hasher::hash, math::{pow, Felt252PartialOrd, Felt252Div},
+        asserts::assert_range_u128_le, array_print::SpanPrintTrait, hash::hash_felts,
     },
     air::{
         public_memory::{
diff --git a/src/channel/channel.cairo b/src/channel/channel.cairo
index bd3015a33..b2a4a3dca 100644
--- a/src/channel/channel.cairo
+++ b/src/channel/channel.cairo
@@ -25,32 +25,6 @@ impl ChannelImpl of ChannelTrait {
         Channel { digest: digest, counter: counter }
     }
 
-    // fn random_uint256_to_prover(ref self: Channel) -> u256 {
-    //     let mut hash_data = ArrayTrait::new(); // u32 for blake, u64 for keccak
-    //     hash_data.append_big_endian(self.digest);
-    //     hash_data.append_big_endian(self.counter);
-    //     self.counter += 1;
-    //     hash(hash_data).flip_endianness()
-    // }
-
-    // fn random_felt_to_prover(ref self: Channel) -> felt252 {
-    //     let mut res: felt252 = 0;
-
-    //     // To ensure a uniform distribution over field elements, if the generated 256-bit number x is in
-    //     // range [0, C * PRIME), take x % PRIME. Otherwise, regenerate.
-    //     // The maximal possible C is 2**256//PRIME = 31.        
-
-    //     loop {
-    //         let rand = self.random_uint256_to_prover();
-    //         if (rand < u256 { low: C_PRIME_AS_UINT256_LOW, high: C_PRIME_AS_UINT256_HIGH }) {
-    //             let to_append = (rand % STARK_PRIME).try_into().unwrap();
-    //             res = to_append * MONTGOMERY_R_INVERSE;
-    //             break;
-    //         }
-    //     };
-    //     res
-    // }
-
     fn random_felt_to_prover(ref self: Channel) -> felt252 {
         let (hash, _, _) = hades_permutation(self.digest, self.counter, 2);
         self.counter += 1;
@@ -69,35 +43,15 @@ impl ChannelImpl of ChannelTrait {
         };
         res
     }
-// not sure what to do with it
-// fn read_truncated_hash_from_prover(ref self: Channel, value: felt252) {
-//     let mut hash_data = ArrayTrait::new(); // u32 for blake, u64 for keccak
-
-//     assert(self.digest.low != BoundedU128::max(), 'digest low is 2^128-1');
-//     hash_data.append_big_endian(self.digest + 1);
-//     hash_data.append_big_endian(value);
-
-//     self.digest = hash(hash_data).flip_endianness();
-//     self.counter = 0;
-// }
-
-fn read_felt_from_prover(ref self: Channel, value: felt252) {
-    let mut hash_data = ArrayTrait::new();
-    hash_data.append(self.digest + 1);
-    hash_data.append(value);
 
-    self.digest = poseidon_hash_span(hash_data.span());
-    self.counter = 0;
-}
+    fn read_felt_from_prover(ref self: Channel, value: felt252) {
+        let mut hash_data = ArrayTrait::new();
+        hash_data.append(self.digest + 1);
+        hash_data.append(value);
 
-// fn read_felts_from_prover(ref self: Channel, mut values: Span<felt252>) {
-//     loop {
-//         match values.pop_front() {
-//             Option::Some(value) => { self.read_felt_from_prover(*value); },
-//             Option::None => { break; }
-//         }
-//     }
-// }
+        self.digest = poseidon_hash_span(hash_data.span());
+        self.counter = 0;
+    }
 
     fn read_felt_vector_from_prover(ref self: Channel, mut values: Span<felt252>) {
         let mut hash_data = ArrayTrait::new();
@@ -118,4 +72,4 @@ fn read_felt_from_prover(ref self: Channel, value: felt252) {
     fn read_uint64_from_prover(ref self: Channel, value: u64) {
         self.read_felt_from_prover(value.into())
     }
-}
\ No newline at end of file
+}
diff --git a/src/queries/queries.cairo b/src/queries/queries.cairo
index 099add166..53cc6e2d7 100644
--- a/src/queries/queries.cairo
+++ b/src/queries/queries.cairo
@@ -37,7 +37,7 @@ fn sample_random_queries(
         }
 
         let res = channel.random_felt_to_prover();
-        let low128 = Into::<felt252,u256>::into(res).low;
+        let low128 = Into::<felt252, u256>::into(res).low;
         let (_, sample) = DivRem::div_rem(low128, query_upper_bound_nonzero);
         result.append(sample.try_into().unwrap());