diff --git a/bin/pcl/src/main.rs b/bin/pcl/src/main.rs
index 6f73e8a..ae738cd 100644
--- a/bin/pcl/src/main.rs
+++ b/bin/pcl/src/main.rs
@@ -26,6 +26,8 @@ const VERSION_MESSAGE: &str = concat!(
     env!("VERGEN_GIT_SHA"),
     "\nBuild Timestamp: ",
     env!("VERGEN_BUILD_TIMESTAMP"),
+    "\nDefault DA URL: ",
+    pcl_core::default_da_url!(),
 );
 
 #[derive(Parser)]
diff --git a/crates/core/src/assertion_da.rs b/crates/core/src/assertion_da.rs
index 8545d3a..594a634 100644
--- a/crates/core/src/assertion_da.rs
+++ b/crates/core/src/assertion_da.rs
@@ -37,6 +37,16 @@ use crate::{
     error::DaSubmitError,
 };
 
+/// Macro that defines the default DA URL - can be used in concat! macros
+#[macro_export]
+macro_rules! default_da_url {
+    () => {
+        "https://demo-21-assertion-da.phylax.systems"
+    };
+}
+
+pub const DEFAULT_DA_URL: &str = default_da_url!();
+
 /// Command-line arguments for storing assertions in the Data Availability layer.
 ///
 /// This struct handles the configuration needed to submit assertions to the DA layer,
@@ -53,7 +63,7 @@ pub struct DaStoreArgs {
         short = 'u',
         env = "PCL_DA_URL",
         value_hint = ValueHint::Url,
-        default_value = "https://demo-21-assertion-da.phylax.systems"
+        default_value = DEFAULT_DA_URL
     )]
     pub url: String,
 
@@ -125,6 +135,7 @@ impl DaStoreArgs {
             println!("\n\n{}", "Assertion Information".bold().green());
             println!("{}", "===================".green());
             println!("{assertion}");
+            println!("\nSubmitted to assertion DA: {}", self.url);
 
             println!("\n{}", "Next Steps:".bold());
             println!("Submit this assertion to a project with:");