diff --git a/cmd/radiance/car/create/create.go b/cmd/radiance/car/create/create.go
index 148a0ba..51d9446 100644
--- a/cmd/radiance/car/create/create.go
+++ b/cmd/radiance/car/create/create.go
@@ -62,7 +62,7 @@ func run(c *cobra.Command, args []string) {
 	}
 
 	// Create new walker object
-	walker, err := blockstore.NewBlockWalk(handles)
+	walker, err := blockstore.NewBlockWalk(handles, 2 /*TODO*/)
 	if err != nil {
 		klog.Exitf("Failed to create multi-DB iterator: %s", err)
 	}
diff --git a/cmd/radiance/car/dump/BUILD b/cmd/radiance/car/dump/BUILD
index 1e53df3..3ce187e 100644
--- a/cmd/radiance/car/dump/BUILD
+++ b/cmd/radiance/car/dump/BUILD
@@ -10,6 +10,7 @@ go_library(
         "@com_github_gagliardetto_binary//:binary",
         "@com_github_gagliardetto_solana_go//:solana-go",
         "@com_github_ipld_go_car//:go-car",
+        "@com_github_multiformats_go_multicodec//:go-multicodec",
         "@com_github_spf13_cobra//:cobra",
         "@io_k8s_klog_v2//:klog",
     ],
diff --git a/cmd/radiance/car/dump/dump.go b/cmd/radiance/car/dump/dump.go
index 9a51aaf..4e31f50 100644
--- a/cmd/radiance/car/dump/dump.go
+++ b/cmd/radiance/car/dump/dump.go
@@ -9,8 +9,8 @@ import (
 	bin "github.com/gagliardetto/binary"
 	"github.com/gagliardetto/solana-go"
 	"github.com/ipld/go-car"
+	"github.com/multiformats/go-multicodec"
 	"github.com/spf13/cobra"
-	"go.firedancer.io/radiance/pkg/ipld/ipldgen"
 	"k8s.io/klog/v2"
 )
 
@@ -42,7 +42,7 @@ func run(_ *cobra.Command, args []string) {
 		} else if err != nil {
 			klog.Exitf("Failed to read block: %s", err)
 		}
-		if block.Cid().Type() == ipldgen.SolanaTx {
+		if multicodec.Code(block.Cid().Type()) == multicodec.Raw {
 			var tx solana.Transaction
 			if err := bin.UnmarshalBin(&tx, block.RawData()); err != nil {
 				klog.Errorf("Invalid CID %s: %s", block.Cid(), err)
diff --git a/cmd/radiance/replay/replay.go b/cmd/radiance/replay/replay.go
index 46af464..916bf02 100644
--- a/cmd/radiance/replay/replay.go
+++ b/cmd/radiance/replay/replay.go
@@ -62,7 +62,7 @@ func run(c *cobra.Command, _ []string) {
 	}
 
 	// Open block iterator.
-	walker, err := blockstore.NewBlockWalk([]blockstore.WalkHandle{{DB: db}})
+	walker, err := blockstore.NewBlockWalk([]blockstore.WalkHandle{{DB: db}}, 2)
 	if err != nil {
 		klog.Fatal(err)
 	}