diff --git a/crates/cnidarium/src/snapshot.rs b/crates/cnidarium/src/snapshot.rs
index f4ae267da6..eb3518805a 100644
--- a/crates/cnidarium/src/snapshot.rs
+++ b/crates/cnidarium/src/snapshot.rs
@@ -82,13 +82,11 @@ impl Snapshot {
             db: db.clone(),
         };
 
-        println!("HERE_");
         let (substore_value, substore_commitment_proof) = tokio::task::spawn_blocking({
             let span = span.clone();
             move || span.in_scope(|| substore.get_with_proof(substore_key_bytes))
         })
         .await??;
-        println!("HERE2");
 
         proofs.push(substore_commitment_proof);
 
@@ -105,18 +103,15 @@ impl Snapshot {
                 db,
             };
 
-            println!("HERE3");
             let (_, main_commitment_proof) = tokio::task::spawn_blocking({
                 let span = span.clone();
                 move || span.in_scope(|| mainstore.get_with_proof(key_to_substore_root.into()))
             })
             .await??;
-            println!("HERE4");
 
             proofs.push(main_commitment_proof);
         }
 
-        println!("HERE5, substore_value: {:?}", substore_value);
         Ok((
             substore_value,
             MerkleProof {
diff --git a/crates/core/app/tests/common/ibc_tests/relayer.rs b/crates/core/app/tests/common/ibc_tests/relayer.rs
index b508fc8f44..5d8fa7ca58 100644
--- a/crates/core/app/tests/common/ibc_tests/relayer.rs
+++ b/crates/core/app/tests/common/ibc_tests/relayer.rs
@@ -366,7 +366,6 @@ impl MockRelayer {
 
     // TODO: copypaste not important to fix rn
     pub async fn _build_and_send_update_client_b(&mut self) -> Result<()> {
-        self._sync_chains().await?;
         tracing::info!(
             "send update client for chain {} to chain {}",
             self.chain_a_ibc.chain_id,
@@ -465,7 +464,6 @@ impl MockRelayer {
 
     // helper function to build UpdateClient to send to chain A
     pub async fn _build_and_send_update_client_a(&mut self) -> Result<()> {
-        self._sync_chains().await?;
         tracing::info!(
             "send update client for chain {} to chain {}",
             self.chain_b_ibc.chain_id,
@@ -706,10 +704,11 @@ impl MockRelayer {
         // Make sure chain B has a client state for this height
         println!("UPDATE1");
         self._build_and_send_update_client_b().await?;
-        self._sync_chains().await?;
+        // self._sync_chains().await?;
 
         // the height chain b's client for chain a should have state for
-        let chain_b_client_a_target_height = self.chain_a_ibc.get_latest_height().await?;
+        let chain_b_client_a_target_height =
+            self.chain_a_ibc.get_latest_height().await?.increment();
 
         let client_state_of_b_on_a_response = self
             .chain_a_ibc
@@ -857,6 +856,9 @@ impl MockRelayer {
             "proof height: {:?}",
             connection_of_b_on_a_response.proof_height
         );
+
+        // d01e8818de18fb050c7aff28a59d430db07802f91c14c4370cf8be785381d4c7 is trusted (for height 6)
+        // but the proof comes in for ae0565596d0d8fb9019815400868ecf002b3aa48f4e0134e116f3184cfa49c4a (height 7)
         println!(
             "chain b latest height: {:?}",
             self.chain_b_ibc.get_latest_height().await?
@@ -884,7 +886,7 @@ impl MockRelayer {
                 proof_conn_end_on_a,
                 proof_client_state_of_b_on_a,
                 proof_consensus_state_of_b_on_a,
-                proofs_height_on_a: client_state_of_b_on_a_response
+                proofs_height_on_a: connection_of_b_on_a_response
                     .proof_height
                     .expect("proof height")
                     .try_into()?,
diff --git a/crates/core/app/tests/ibc_handshake.rs b/crates/core/app/tests/ibc_handshake.rs
index 0e93d2b540..2e6b036ae5 100644
--- a/crates/core/app/tests/ibc_handshake.rs
+++ b/crates/core/app/tests/ibc_handshake.rs
@@ -11,7 +11,10 @@ use {
     ibc_proto::{
         google::protobuf::Any,
         ibc::core::{
-            client::v1::{QueryClientStateRequest, QueryConsensusStateRequest},
+            client::v1::{
+                query_client::QueryClient as IbcClientQueryClient, QueryClientStateRequest,
+                QueryConsensusStateRequest,
+            },
             connection::v1::QueryConnectionRequest,
         },
     },
@@ -22,7 +25,9 @@ use {
             connection::ConnectionEnd,
         },
         lightclients::tendermint::{
-            client_state::{AllowUpdate, ClientState as TendermintClientState},
+            client_state::{
+                AllowUpdate, ClientState as TendermintClientState, TENDERMINT_CLIENT_STATE_TYPE_URL,
+            },
             consensus_state::ConsensusState as TendermintConsensusState,
             TrustThreshold,
         },
@@ -137,6 +142,7 @@ async fn verify_storage_proof_simple() -> anyhow::Result<()> {
 
     let start_time = tendermint::Time::parse_from_rfc3339("2022-02-11T17:30:50.425417198Z")?;
 
+    let proxy = penumbra_mock_tendermint_proxy::TestNodeProxy::new::<Consensus>();
     let mut node = {
         let app_state = AppState::Content(
             genesis::Content::default().with_chain_id(TestNode::<()>::CHAIN_ID.to_string()),
@@ -146,6 +152,7 @@ async fn verify_storage_proof_simple() -> anyhow::Result<()> {
         TestNode::builder()
             .single_validator()
             .with_penumbra_auto_app_state(app_state)?
+            .on_block(proxy.on_block_callback())
             .init_chain(consensus)
             .await
             .tap_ok(|e| tracing::info!(hash = %e.last_app_hash_hex(), "finished init chain"))?
@@ -280,7 +287,6 @@ async fn verify_storage_proof_simple() -> anyhow::Result<()> {
     let grpc_url = "http://127.0.0.1:8081" // see #4517
         .parse::<url::Url>()?
         .tap(|url| tracing::debug!(%url, "parsed grpc url"));
-    let proxy = penumbra_mock_tendermint_proxy::TestNodeProxy::new::<Consensus>();
     // Spawn the node's RPC server.
     let _rpc_server = {
         let make_svc =
@@ -305,7 +311,9 @@ async fn verify_storage_proof_simple() -> anyhow::Result<()> {
         .await
         .with_context(|| "could not connect to grpc server")
         .tap_err(|error| tracing::error!(?error, "could not connect to grpc server"))?;
-    let mut cnidarium_client = CnidariumQueryServiceClient::new(channel);
+    let mut cnidarium_client = CnidariumQueryServiceClient::new(channel.clone());
+    let mut ibc_client_query_client = IbcClientQueryClient::new(channel.clone());
+    let mut tendermint_proxy_service_client = TendermintProxyServiceClient::new(channel.clone());
     let kvr = cnidarium_client
         .key_value(tonic::Request::new(KeyValueRequest {
             key: String::from_utf8(key.clone()).unwrap(),
@@ -323,7 +331,74 @@ async fn verify_storage_proof_simple() -> anyhow::Result<()> {
     // Same for the values.
     assert_eq!(value, conn);
 
-    proof.verify_membership(&proof_specs, root.clone(), merkle_path, value, 0)?;
+    proof.verify_membership(
+        &proof_specs,
+        root.clone(),
+        merkle_path.clone(),
+        value.clone(),
+        0,
+    )?;
+
+    // Try fetching the client state via the IBC API
+    let ibc_client_state_response = ibc_client_query_client
+        .client_state(QueryClientStateRequest {
+            client_id: "07-tendermint-0".to_string(),
+        })
+        .await?
+        .into_inner();
+
+    let ibc_proof = MerkleProof::decode(ibc_client_state_response.clone().proof.as_slice())?;
+    let ibc_value = ibc_client_state_response.client_state.unwrap();
+
+    let cs = ibc_types::lightclients::tendermint::client_state::ClientState::try_from(
+        ibc_value.clone(),
+    )?;
+    println!("client state: {:?}", cs);
+    // let cs2 = ibc_types::lightclients::tendermint::client_state::ClientState::try_from(Any {
+    //     type_url: TENDERMINT_CLIENT_STATE_TYPE_URL.to_string(),
+    //     value: value.clone().into(),
+    // })?;
+    let client_state = ibc_proto::google::protobuf::Any::decode(value.as_ref())?;
+    let cs2 = ibc_proto::ibc::lightclients::tendermint::v1::ClientState::decode(
+        &*client_state.value.clone(),
+    )?;
+    let cs3 =
+        ibc_types::lightclients::tendermint::client_state::ClientState::try_from(client_state)?;
+    println!("client state2: {:?}", cs2);
+    println!("client state3: {:?}", cs3);
+
+    // let client_state = ibc_proto::google::protobuf::Any::decode(value.as_ref())?;
+    // let cs1 = ibc_proto::ibc::lightclients::tendermint::v1::ClientState::decode(&*client.value)?;
+    // let client_state1 = TendermintClientState::try_from(cs1.clone())?;
+
+    assert_eq!(ibc_value.encode_to_vec(), value);
+
+    // We should be able to get the block from the proof_height associated with
+    // the proof and use the app_hash as the jmt root and succeed in proving:
+    let proof_block: penumbra_proto::util::tendermint_proxy::v1::GetBlockByHeightResponse =
+        tendermint_proxy_service_client
+            .get_block_by_height(GetBlockByHeightRequest {
+                height: ibc_client_state_response
+                    .proof_height
+                    .unwrap()
+                    .revision_height
+                    .try_into()?,
+            })
+            .await?
+            .into_inner();
+
+    let proof_block_root = MerkleRoot {
+        hash: proof_block.block.unwrap().header.unwrap().app_hash,
+    };
+    ibc_proof
+        .verify_membership(
+            &proof_specs,
+            proof_block_root,
+            merkle_path,
+            ibc_value.encode_to_vec(),
+            0,
+        )
+        .expect("the ibc proof should validate against the root of the proof_height's block");
 
     Ok(())
         .tap(|_| drop(node))
@@ -675,12 +750,12 @@ async fn real_cometbft_tests() -> Result<()> {
     let mut tendermint_proxy_service_client = TendermintProxyServiceClient::new(channel.clone());
 
     let b = tendermint_proxy_service_client
-        .get_block_by_height(GetBlockByHeightRequest { height: 1 })
+        .get_block_by_height(GetBlockByHeightRequest { height: 333 })
         .await?
         .into_inner();
 
     println!(
-        "block 1 app_hash: {}, last_block_id: {:?}, height: {} last_commit_hash: {}",
+        "block 333 app_hash: {}, last_block_id: {:?}, height: {} last_commit_hash: {}",
         hex::encode(b.clone().block.unwrap().header.unwrap().app_hash),
         b.clone().block.unwrap().header.unwrap().last_block_id,
         b.clone().block.unwrap().header.unwrap().height,
diff --git a/crates/core/component/ibc/src/component/msg_handler/connection_open_try.rs b/crates/core/component/ibc/src/component/msg_handler/connection_open_try.rs
index 1133b8f44a..66fab36ca0 100644
--- a/crates/core/component/ibc/src/component/msg_handler/connection_open_try.rs
+++ b/crates/core/component/ibc/src/component/msg_handler/connection_open_try.rs
@@ -97,6 +97,11 @@ impl MsgHandler for MsgConnectionOpenTry {
         let trusted_consensus_state = state
             .get_verified_consensus_state(&self.proofs_height_on_a, &self.client_id_on_b)
             .await?;
+        println!(
+            "trusted consensus state for height {} -- root: {}",
+            self.proofs_height_on_a,
+            hex::encode(trusted_consensus_state.clone().root.hash)
+        );
 
         // PROOF VERIFICATION
         // 1. verify that the counterparty chain committed the expected_conn to its state
@@ -143,7 +148,7 @@ impl MsgHandler for MsgConnectionOpenTry {
         );
         println!(
             "trusted_consensus_state.root.hash: {}",
-            hex::encode(trusted_consensus_state.root.hash.clone())
+            hex::encode(trusted_consensus_state.clone().root.hash.clone())
         );
         // assert_eq!(
         //     hex::encode(trusted_consensus_state.root.hash.clone()),
@@ -163,7 +168,7 @@ impl MsgHandler for MsgConnectionOpenTry {
             self.proofs_height_on_a,
             &self.counterparty.prefix,
             &proof_conn_end_on_a,
-            &trusted_consensus_state.root,
+            &trusted_consensus_state.root.clone(),
             &ConnectionPath::new(
                 self.counterparty
                     .connection_id