diff --git a/providers/carl-redhound/artifacts_certs_v4.zip b/providers/carl-redhound/artifacts_certs_v4.zip
index 64b829b..825dceb 100644
Binary files a/providers/carl-redhound/artifacts_certs_v4.zip and b/providers/carl-redhound/artifacts_certs_v4.zip differ
diff --git a/providers/carl-redhound/compatMatrices/artifacts_certs_r4/bc_carl-redhound.csv b/providers/carl-redhound/compatMatrices/artifacts_certs_r4/bc_carl-redhound.csv
index 80aa724..6f1cee4 100644
--- a/providers/carl-redhound/compatMatrices/artifacts_certs_r4/bc_carl-redhound.csv
+++ b/providers/carl-redhound/compatMatrices/artifacts_certs_r4/bc_carl-redhound.csv
@@ -31,3 +31,26 @@ key_algorithm_oid,test_result
 2.16.840.1.101.3.4.3.44,Y
 2.16.840.1.101.3.4.3.45,Y
 2.16.840.1.101.3.4.3.46,Y
+2.16.840.1.114027.80.8.1.22,Y
+2.16.840.1.114027.80.8.1.23,Y
+2.16.840.1.114027.80.8.1.24,Y
+2.16.840.1.114027.80.8.1.27,Y
+2.16.840.1.114027.80.8.1.28,Y
+2.16.840.1.114027.80.8.1.30,Y
+2.16.840.1.114027.80.8.1.31,Y
+2.16.840.1.114027.80.8.1.35,Y
+2.16.840.1.114027.80.8.1.41,Y
+2.16.840.1.114027.80.8.1.42,Y
+2.16.840.1.114027.80.8.1.43,Y
+2.16.840.1.114027.80.8.1.45,Y
+2.16.840.1.114027.80.8.1.47,Y
+2.16.840.1.114027.80.8.1.48,Y
+2.16.840.1.114027.80.8.1.50,Y
+2.16.840.1.114027.80.8.1.51,Y
+2.16.840.1.114027.80.8.1.21,Y
+2.16.840.1.114027.80.8.1.26,Y
+2.16.840.1.114027.80.8.1.34,Y
+2.16.840.1.114027.80.8.1.40,Y
+2.16.840.1.114027.80.8.1.44,Y
+2.16.840.1.114027.80.8.1.46,Y
+
diff --git a/providers/carl-redhound/compatMatrices/artifacts_certs_r4/corey-digicert_carl-redhound.csv b/providers/carl-redhound/compatMatrices/artifacts_certs_r4/corey-digicert_carl-redhound.csv
new file mode 100644
index 0000000..adb78bd
--- /dev/null
+++ b/providers/carl-redhound/compatMatrices/artifacts_certs_r4/corey-digicert_carl-redhound.csv
@@ -0,0 +1,7 @@
+key_algorithm_oid,test_result
+2.16.840.1.101.3.4.3.17,Y
+2.16.840.1.101.3.4.3.18,Y
+2.16.840.1.101.3.4.3.19,Y
+2.16.840.1.101.3.4.3.32,Y
+2.16.840.1.101.3.4.3.33,Y
+2.16.840.1.101.3.4.3.34,Y
diff --git a/providers/carl-redhound/compatMatrices/artifacts_certs_r4/cryptonext_carl-redhound.csv b/providers/carl-redhound/compatMatrices/artifacts_certs_r4/cryptonext_carl-redhound.csv
new file mode 100644
index 0000000..80aa724
--- /dev/null
+++ b/providers/carl-redhound/compatMatrices/artifacts_certs_r4/cryptonext_carl-redhound.csv
@@ -0,0 +1,33 @@
+key_algorithm_oid,test_result
+1.3.9999.3.9,Y
+1.3.9999.3.6,Y
+2.16.840.1.101.3.4.3.17,Y
+2.16.840.1.101.3.4.3.18,Y
+2.16.840.1.101.3.4.3.19,Y
+2.16.840.1.101.3.4.3.20,Y
+2.16.840.1.101.3.4.3.21,Y
+2.16.840.1.101.3.4.3.22,Y
+2.16.840.1.101.3.4.3.23,Y
+2.16.840.1.101.3.4.3.24,Y
+2.16.840.1.101.3.4.3.25,Y
+2.16.840.1.101.3.4.3.26,Y
+2.16.840.1.101.3.4.3.27,Y
+2.16.840.1.101.3.4.3.28,Y
+2.16.840.1.101.3.4.3.29,Y
+2.16.840.1.101.3.4.3.30,Y
+2.16.840.1.101.3.4.3.31,Y
+2.16.840.1.101.3.4.3.32,Y
+2.16.840.1.101.3.4.3.33,Y
+2.16.840.1.101.3.4.3.34,Y
+2.16.840.1.101.3.4.3.35,Y
+2.16.840.1.101.3.4.3.36,Y
+2.16.840.1.101.3.4.3.37,Y
+2.16.840.1.101.3.4.3.38,Y
+2.16.840.1.101.3.4.3.39,Y
+2.16.840.1.101.3.4.3.40,Y
+2.16.840.1.101.3.4.3.41,Y
+2.16.840.1.101.3.4.3.42,Y
+2.16.840.1.101.3.4.3.43,Y
+2.16.840.1.101.3.4.3.44,Y
+2.16.840.1.101.3.4.3.45,Y
+2.16.840.1.101.3.4.3.46,Y
diff --git a/providers/carl-redhound/compatMatrices/artifacts_certs_r4/kris_carl-redhound.csv b/providers/carl-redhound/compatMatrices/artifacts_certs_r4/kris_carl-redhound.csv
new file mode 100644
index 0000000..c0f85d8
--- /dev/null
+++ b/providers/carl-redhound/compatMatrices/artifacts_certs_r4/kris_carl-redhound.csv
@@ -0,0 +1,4 @@
+key_algorithm_oid,test_result
+2.16.840.1.101.3.4.3.17,Y
+2.16.840.1.101.3.4.3.18,Y
+2.16.840.1.101.3.4.3.19,Y
\ No newline at end of file
diff --git a/providers/carl-redhound/compatMatrices/artifacts_certs_r4/seventhsense.ai_carl-redhound.csv b/providers/carl-redhound/compatMatrices/artifacts_certs_r4/seventhsense.ai_carl-redhound.csv
new file mode 100644
index 0000000..22f038a
--- /dev/null
+++ b/providers/carl-redhound/compatMatrices/artifacts_certs_r4/seventhsense.ai_carl-redhound.csv
@@ -0,0 +1,36 @@
+key_algorithm_oid,test_result
+2.16.840.1.101.3.4.3.17,Y
+2.16.840.1.101.3.4.3.18,Y
+2.16.840.1.101.3.4.3.19,Y
+2.16.840.1.101.3.4.3.20,Y
+2.16.840.1.101.3.4.3.21,Y
+2.16.840.1.101.3.4.3.22,Y
+2.16.840.1.101.3.4.3.23,Y
+2.16.840.1.101.3.4.3.24,Y
+2.16.840.1.101.3.4.3.25,Y
+2.16.840.1.101.3.4.3.26,Y
+2.16.840.1.101.3.4.3.27,Y
+2.16.840.1.101.3.4.3.28,Y
+2.16.840.1.101.3.4.3.29,Y
+2.16.840.1.101.3.4.3.30,Y
+2.16.840.1.101.3.4.3.31,Y
+2.16.840.1.114027.80.8.1.22,Y
+2.16.840.1.114027.80.8.1.24,Y
+2.16.840.1.114027.80.8.1.27,Y
+2.16.840.1.114027.80.8.1.28,Y
+2.16.840.1.114027.80.8.1.31,Y
+2.16.840.1.114027.80.8.1.35,Y
+2.16.840.1.114027.80.8.1.41,Y
+2.16.840.1.114027.80.8.1.42,Y
+2.16.840.1.114027.80.8.1.43,Y
+2.16.840.1.114027.80.8.1.45,Y
+2.16.840.1.114027.80.8.1.47,Y
+2.16.840.1.114027.80.8.1.48,Y
+2.16.840.1.114027.80.8.1.50,Y
+2.16.840.1.114027.80.8.1.51,Y
+2.16.840.1.114027.80.8.1.21,Y
+2.16.840.1.114027.80.8.1.26,Y
+2.16.840.1.114027.80.8.1.34,Y
+2.16.840.1.114027.80.8.1.40,Y
+2.16.840.1.114027.80.8.1.44,Y
+2.16.840.1.114027.80.8.1.46,Y
diff --git a/providers/readme.md b/providers/readme.md
index 65b6c4d..2c40811 100644
--- a/providers/readme.md
+++ b/providers/readme.md
@@ -23,7 +23,7 @@
 * Provider short name: `carl-redhound`
 * Company name: Red Hound Software
 * Company website: http://www.hound.red/about.html
-* Implementation: Proprietary wrapper for Rust crypto, which internally is PQClean.
+* Implementation: Open source certification path builder/validation library. Internally uses PQCrypto/PQClean for ml-dsa and ml-kem and RustCrypto for slh-dsa.
 
 # Chunghwa Telecom Company (CHT)