1 files changed, 7 insertions, 0 deletions
diff --git a/tvix/castore/src/digests.rs b/tvix/castore/src/digests.rs
index 137ed2669a8f..8a1938c1b649 100644
--- a/tvix/castore/src/digests.rs
+++ b/tvix/castore/src/digests.rs
@@ -26,6 +26,13 @@ impl From<B3Digest> for bytes::Bytes {
     }
 }
 
+impl From<digest::Output<blake3::Hasher>> for B3Digest {
+    fn from(value: digest::Output<blake3::Hasher>) -> Self {
+        let v = Into::<[u8; B3_LEN]>::into(value);
+        Self(Bytes::copy_from_slice(&v))
+    }
+}
+
 impl TryFrom<Vec<u8>> for B3Digest {
     type Error = Error;