diff --git a/components/dep-componentized-oci-client/dep-componentized-oci-client.wkg b/components/dep-componentized-oci-client/dep-componentized-oci-client.wkg
index 7e80648..d1c1b50 100644
--- a/components/dep-componentized-oci-client/dep-componentized-oci-client.wkg
+++ b/components/dep-componentized-oci-client/dep-componentized-oci-client.wkg
@@ -1,2 +1,2 @@
-ghcr.io/componentized/oci/client:0.1.0-dev@sha256:a5c60dc24dea1883e347f67a7f3929694b620c8096fb4afff54cb8b9fbc95004
-ghcr.io/componentized/oci/client:0.1.0-dev_debug@sha256:075eecc73333b82ce0854907e06015296f7c3a839539d7b5457bec31d95e7a00
+ghcr.io/componentized/oci/client:0.1.0-dev@sha256:f8803d55c62f994c2e134e2b821ab8a400bf379179a0941c4396ad54d21664f6
+ghcr.io/componentized/oci/client:0.1.0-dev_debug@sha256:5972e075b6dc9eff04ef7e986b81526ee657fb671ba3c8bec4e3aab61e70f2d6
diff --git a/components/oci-loader/src/lib.rs b/components/oci-loader/src/lib.rs
index 1d92e90..d91cccb 100644
--- a/components/oci-loader/src/lib.rs
+++ b/components/oci-loader/src/lib.rs
@@ -2,6 +2,7 @@ use crate::{
     componentized::{
         component::types::{ErrorCode, Malformed, Wasm},
         oci::client::{self as oci, Digest, Reference},
+        oci::media_types,
     },
     exports::componentized::component::path_loader::Guest,
 };
@@ -23,23 +24,21 @@ async fn load_reference(path: &str) -> Result<Wasm, ErrorCode> {
         oci::Manifest::OciImageV1(oci_image_manifest_v1) => oci_image_manifest_v1,
         _ => Err(ErrorCode::Other(Some("unexpected manifest".to_string())))?,
     };
-    match manifest.config.media_type {
-        oci::MediaType::ApplicationVndWasmConfigV0(oci::MediaTypeSuffix::Json) => {}
-        _ => Err(ErrorCode::Other(Some(
+    if manifest.config.media_type != media_types::application_vnd_wasm_config_v0_json() {
+        Err(ErrorCode::Other(Some(
             "unexpected config media type".to_string(),
-        )))?,
-    };
+        )))?
+    }
     if manifest.layers.len() != 1 {
         Err(ErrorCode::Other(Some(
             "unknown artifact layout".to_string(),
         )))?
     }
     let component_descriptor = manifest.layers.first().unwrap();
-    match component_descriptor.media_type {
-        oci::MediaType::ApplicationWasm => {}
-        _ => Err(ErrorCode::Other(Some(
+    if component_descriptor.media_type != media_types::application_wasm() {
+        Err(ErrorCode::Other(Some(
             "unknown artifact media type".to_string(),
-        )))?,
+        )))?
     }
 
     let config_reference = manifest_reference.with_digest(&manifest.config.digest);
@@ -54,7 +53,9 @@ async fn load_reference(path: &str) -> Result<Wasm, ErrorCode> {
 
     let component_reference =
         manifest_reference.with_digest(&manifest.layers.first().unwrap().digest);
-    let component = oci::get_blob(component_reference).await?;
+    let (component, verified) = oci::get_blob(component_reference).await?;
+    let component = component.collect().await;
+    verified.await?;
     if component_descriptor.size != component.len() as u64 {
         Err(ErrorCode::Malformed(Malformed {
             name: None,
diff --git a/components/test-loader/test-loader.wac b/components/test-loader/test-loader.wac
index eff4826..26d474c 100644
--- a/components/test-loader/test-loader.wac
+++ b/components/test-loader/test-loader.wac
@@ -9,8 +9,8 @@ let oci-client = new local:dep-componentized-oci-client {
 
 export new local:test-loader-harness {
     path-loader: new local:path-loader {
-        "componentized:http/client@0.1.0": http-client.client,
-        "componentized:oci/client@0.0.0-dev": oci-client.client,
+        ...http-client,
+        ...oci-client,
         ...
     }.path-loader,
     ...
diff --git a/components/wit/worlds.wit b/components/wit/worlds.wit
index 5b9ead9..bc83d58 100644
--- a/components/wit/worlds.wit
+++ b/components/wit/worlds.wit
@@ -18,7 +18,8 @@ world http-loader {
 }
 
 world oci-loader {
-    import componentized:oci/client@0.0.0-dev;
+    import componentized:oci/client@0.1.0;
+    import componentized:oci/media-types@0.1.0;
     import componentized:component/types@0.0.0-dev;
     export componentized:component/path-loader@0.0.0-dev;
 }
diff --git a/components/wkg.lock b/components/wkg.lock
index 36cfa5e..8600d5b 100644
--- a/components/wkg.lock
+++ b/components/wkg.lock
@@ -20,6 +20,16 @@ requirement = "=0.0.0-dev"
 version = "0.0.0-dev"
 digest = "sha256:fe33e6ac5f37a1a5f37b249c382b28e5224d4f2b28a7b6f8499a8bb11762e400"
 
+[[packages.versions]]
+requirement = "=0.1.0-dev"
+version = "0.1.0-dev"
+digest = "sha256:15c5e31aec2cffa766de8d19dfd01cd17cae26528c207a1a13f2958da1304348"
+
+[[packages.versions]]
+requirement = "=0.1.0"
+version = "0.1.0"
+digest = "sha256:669209f655930f3a48412a6ee4e29371d86db6ba001b3b3d78aff0f1839f6fdb"
+
 [[packages]]
 name = "wasi:cli"
 registry = "wasi.dev"
diff --git a/tools/Cargo.toml b/tools/Cargo.toml
index 59fae24..99fdbee 100644
--- a/tools/Cargo.toml
+++ b/tools/Cargo.toml
@@ -13,7 +13,7 @@ publish = false
 path = "lib.rs"
 
 [dependencies]
-componentized-constants-cli = "=0.1.0-dev"
+componentized-constants-cli = "=0.1.1"
 static-config = "=0.2.0"
 wac-cli = "=0.12.0"
 wasm-tools = "=1.261.0"