diff --git a/rust/cardano-blockchain-types/Cargo.toml b/rust/cardano-blockchain-types/Cargo.toml
index 606801e59ee..60db45fc7dd 100644
--- a/rust/cardano-blockchain-types/Cargo.toml
+++ b/rust/cardano-blockchain-types/Cargo.toml
@@ -18,7 +18,7 @@ crate-type = ["cdylib", "rlib"]
 workspace = true
 
 [dependencies]
-catalyst-types = { version = "0.0.6", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "catalyst-types/v0.0.6" }
+catalyst-types = { version = "0.0.9", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "catalyst-types/v0.0.9" }
 cbork-utils = { version = "0.0.2", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "cbork-utils-v0.0.2" }
 
 ouroboros = "0.18.4"
@@ -35,7 +35,6 @@ num-traits = "0.2.19"
 ed25519-dalek = "2.1.1"
 serde = "1.0.210"
 num-bigint = "0.4.6"
-serde_json = "1.0.134"
 displaydoc = "0.2.5"
 thiserror = "2.0.11"
 
diff --git a/rust/cardano-blockchain-types/src/metadata/cip36/mod.rs b/rust/cardano-blockchain-types/src/metadata/cip36/mod.rs
index 340ca7df9f2..fd9ce92b837 100644
--- a/rust/cardano-blockchain-types/src/metadata/cip36/mod.rs
+++ b/rust/cardano-blockchain-types/src/metadata/cip36/mod.rs
@@ -51,7 +51,7 @@ impl fmt::Display for Cip36 {
     ) -> fmt::Result {
         write!(
             f,
-            "Cip36 {{ network: {network}, slot: {slot:?}, txn_idx: {txn_idx:?}, is_catalyst_strict: {is_catalyst_strict}, key_registration: {key_registration:?}, registration_witness: {registration_witness:?}, validation: {{ signature: {is_valid_signature}, payment_address_network: {is_valid_payment_address_network}, voting_keys: {is_valid_voting_keys}, purpose: {is_valid_purpose} }}, err_report: {err_report} }}",
+            "Cip36 {{ network: {network}, slot: {slot:?}, txn_idx: {txn_idx:?}, is_catalyst_strict: {is_catalyst_strict}, key_registration: {key_registration:?}, registration_witness: {registration_witness:?}, validation: {{ signature: {is_valid_signature}, payment_address_network: {is_valid_payment_address_network}, voting_keys: {is_valid_voting_keys}, purpose: {is_valid_purpose} }}, problematic: {is_problematic} }}",
             key_registration = self.key_registration,
             registration_witness = self.registration_witness,
             network = self.network,
@@ -62,34 +62,7 @@ impl fmt::Display for Cip36 {
             is_valid_payment_address_network = self.is_valid_payment_address_network,
             is_valid_voting_keys = self.is_valid_voting_keys,
             is_valid_purpose = self.is_valid_purpose,
-            err_report = serde_json::to_string(&self.err_report)
-            .unwrap_or_else(|_| String::from("Failed to serialize ProblemReport"))
-        )
-    }
-}
-
-/// CIP-36 Catalyst registration error
-#[allow(dead_code, clippy::module_name_repetitions)]
-#[derive(Debug)]
-pub struct Cip36Error {
-    /// The decoding error that make the code not able to process.
-    error: anyhow::Error,
-    /// The problem report that contains the errors found during decoding and validation.
-    report: ProblemReport,
-}
-
-impl fmt::Display for Cip36Error {
-    fn fmt(
-        &self,
-        fmt: &mut fmt::Formatter<'_>,
-    ) -> fmt::Result {
-        let report_json = serde_json::to_string(&self.report)
-            .unwrap_or_else(|_| String::from("Failed to serialize ProblemReport"));
-
-        write!(
-            fmt,
-            "Cip36Error {{ error: {}, report: {} }}",
-            self.error, report_json
+            is_problematic = self.err_report.is_problematic(),
         )
     }
 }
@@ -118,7 +91,7 @@ impl Cip36 {
         block: &MultiEraBlock,
         txn_idx: TxnIndex,
         is_catalyst_strict: bool,
-    ) -> Result<Option<Cip36>, Cip36Error> {
+    ) -> anyhow::Result<Option<Cip36>> {
         // Record of errors found during decoding and validation
         let mut err_report = ProblemReport::new("CIP36 Registration Decoding and Validation");
 
@@ -148,12 +121,7 @@ impl Cip36 {
                     metadata
                 },
                 Err(e) => {
-                    return Err(Cip36Error {
-                        error: anyhow::anyhow!(format!(
-                            "Failed to construct CIP-36 key registration, {e}"
-                        )),
-                        report: err_report,
-                    });
+                    anyhow::bail!("Failed to construct CIP-36 key registration, {e}");
                 },
             };
 
@@ -161,12 +129,7 @@ impl Cip36 {
             match Cip36RegistrationWitness::decode(&mut registration_witness, &mut err_report) {
                 Ok(metadata) => metadata,
                 Err(e) => {
-                    return Err(Cip36Error {
-                        error: anyhow::anyhow!(format!(
-                            "Failed to construct CIP-36 registration witness {e}"
-                        )),
-                        report: err_report,
-                    });
+                    anyhow::bail!("Failed to construct CIP-36 registration witness {e}");
                 },
             };
 
@@ -210,7 +173,7 @@ impl Cip36 {
     pub fn cip36_from_block(
         block: &MultiEraBlock,
         is_catalyst_strict: bool,
-    ) -> Option<HashMap<TxnIndex, Result<Cip36, Cip36Error>>> {
+    ) -> Option<HashMap<TxnIndex, anyhow::Result<Cip36>>> {
         let mut cip36_map = HashMap::new();
 
         for (txn_idx, _tx) in block.decode().txs().iter().enumerate() {
diff --git a/rust/cardano-chain-follower/Cargo.toml b/rust/cardano-chain-follower/Cargo.toml
index d005f615f96..5cdcc615f92 100644
--- a/rust/cardano-chain-follower/Cargo.toml
+++ b/rust/cardano-chain-follower/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cardano-chain-follower"
-version = "0.0.16"
+version = "0.0.17"
 edition.workspace = true
 authors.workspace = true
 homepage.workspace = true
@@ -17,7 +17,7 @@ mithril-client = { version = "=0.12.2", default-features = false, features = [
 ] }
 
 cardano-blockchain-types = { version = "0.0.7", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "cardano-blockchain-types/v0.0.7" }
-catalyst-types = { version = "0.0.8", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "catalyst-types/v0.0.8" }
+catalyst-types = { version = "0.0.9",  git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "catalyst-types/v0.0.9" }
 
 thiserror = "1.0.69"
 tokio = { version = "1.45.0", features = [
diff --git a/rust/rbac-registration/Cargo.toml b/rust/rbac-registration/Cargo.toml
index 36c91c2875a..359f2f8506a 100644
--- a/rust/rbac-registration/Cargo.toml
+++ b/rust/rbac-registration/Cargo.toml
@@ -2,7 +2,7 @@
 name = "rbac-registration"
 description = "Role Based Access Control Registration"
 keywords = ["cardano", "catalyst", "rbac registration"]
-version = "0.0.12"
+version = "0.0.13"
 authors = [
     "Arissara Chotivichit <arissara.chotivichit@iohk.io>"
 ]
@@ -35,4 +35,4 @@ thiserror = "2.0.11"
 c509-certificate = { version = "0.0.3", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "c509-certificate-v0.0.3" }
 cbork-utils = { version = "0.0.2", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "cbork-utils-v0.0.2" }
 cardano-blockchain-types = { version = "0.0.7", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "cardano-blockchain-types/v0.0.7" }
-catalyst-types = { version = "0.0.8", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "catalyst-types/v0.0.8" }
+catalyst-types = { version = "0.0.9", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "catalyst-types/v0.0.9" }
diff --git a/rust/signed_doc/Cargo.toml b/rust/signed_doc/Cargo.toml
index c36aaf535b2..70cf1ae3ae9 100644
--- a/rust/signed_doc/Cargo.toml
+++ b/rust/signed_doc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "catalyst-signed-doc"
-version = "0.0.8"
+version = "0.0.9"
 edition.workspace = true
 authors.workspace = true
 homepage.workspace = true
@@ -11,7 +11,7 @@ license.workspace = true
 workspace = true
 
 [dependencies]
-catalyst-types = { version = "0.0.8", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "catalyst-types/v0.0.8" }
+catalyst-types = { version = "0.0.9", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "catalyst-types/v0.0.9" }
 cbork-utils = { version = "0.0.2", git = "https://github.com/input-output-hk/catalyst-libs.git", tag = "cbork-utils-v0.0.2" }
 
 catalyst-signed-doc-macro = { version = "0.0.1", path = "../catalyst-signed-doc-macro" }
diff --git a/rust/signed_doc/src/lib.rs b/rust/signed_doc/src/lib.rs
index 16343d5df63..1e247fbb9a4 100644
--- a/rust/signed_doc/src/lib.rs
+++ b/rust/signed_doc/src/lib.rs
@@ -30,7 +30,7 @@ pub use metadata::{
 use minicbor::{decode, encode, Decode, Decoder, Encode};
 pub use signature::{CatalystId, Signatures};
 
-use crate::{builder::SignaturesBuilder, metadata::SupportedLabel};
+use crate::{builder::SignaturesBuilder, metadata::SupportedLabel, signature::Signature};
 
 /// `COSE_Sign` object CBOR tag <https://datatracker.ietf.org/doc/html/rfc8152#page-8>
 const COSE_SIGN_CBOR_TAG: minicbor::data::Tag = minicbor::data::Tag::new(98);
@@ -69,8 +69,8 @@ impl Display for CatalystSignedDocument {
         if self.inner.signatures.is_empty() {
             writeln!(f, "  This document is unsigned.")?;
         } else {
-            for kid in &self.kids() {
-                writeln!(f, "  Signature Key ID: {kid}")?;
+            for kid in &self.authors() {
+                writeln!(f, "  Author ID: {kid}")?;
             }
         }
         Ok(())
@@ -161,23 +161,14 @@ impl CatalystSignedDocument {
         &self.inner.signatures
     }
 
-    /// Return a list of Document's Catalyst IDs.
-    #[must_use]
-    pub fn kids(&self) -> Vec<CatalystId> {
-        self.inner
-            .signatures
-            .iter()
-            .map(|s| s.kid().clone())
-            .collect()
-    }
-
-    /// Return a list of Document's author IDs (short form of Catalyst IDs).
+    /// Return a list of Document's Signer's Catalyst IDs,
     #[must_use]
     pub fn authors(&self) -> Vec<CatalystId> {
         self.inner
             .signatures
             .iter()
-            .map(|s| s.kid().as_short_id())
+            .map(Signature::kid)
+            .cloned()
             .collect()
     }
 
diff --git a/rust/signed_doc/src/validator/rules/ownership/mod.rs b/rust/signed_doc/src/validator/rules/ownership/mod.rs
index 95cda06583e..904d782b6cc 100644
--- a/rust/signed_doc/src/validator/rules/ownership/mod.rs
+++ b/rust/signed_doc/src/validator/rules/ownership/mod.rs
@@ -11,7 +11,6 @@ use catalyst_signed_doc_spec::{
     signers::update::{Update, UpdatersType},
     DocSpec,
 };
-use catalyst_types::catalyst_id::CatalystId;
 
 use crate::{providers::CatalystSignedDocumentProvider, CatalystSignedDocument};
 
@@ -105,13 +104,7 @@ impl DocumentOwnershipRule {
                         "A latest version of the document must exist if a first version exists"
                     ))?;
 
-                    allowed_authors.extend(
-                        last_doc
-                            .doc_meta()
-                            .collaborators()
-                            .iter()
-                            .map(CatalystId::as_short_id),
-                    );
+                    allowed_authors.extend(last_doc.doc_meta().collaborators().iter().cloned());
                 }
             },
             Self::RefFieldBased => {
@@ -141,13 +134,7 @@ impl DocumentOwnershipRule {
                             "A latest version of the document must exist if a first version exists"
                         ))?;
 
-                allowed_authors.extend(
-                    last_doc
-                        .doc_meta()
-                        .collaborators()
-                        .iter()
-                        .map(CatalystId::as_short_id),
-                );
+                allowed_authors.extend(last_doc.doc_meta().collaborators().iter().cloned());
             },
         }
 
diff --git a/rust/signed_doc/src/validator/rules/signature_kid.rs b/rust/signed_doc/src/validator/rules/signature_kid.rs
index fa0d2a58398..c940cbb5aec 100644
--- a/rust/signed_doc/src/validator/rules/signature_kid.rs
+++ b/rust/signed_doc/src/validator/rules/signature_kid.rs
@@ -56,7 +56,7 @@ impl SignatureKidRule {
         &self,
         doc: &CatalystSignedDocument,
     ) -> anyhow::Result<bool> {
-        let contains_exp_role = doc.kids().iter().enumerate().all(|(i, kid)| {
+        let contains_exp_role = doc.authors().iter().enumerate().all(|(i, kid)| {
             let (role_index, _) = kid.role_and_rotation();
             let res = self.allowed_roles.contains(&role_index);
             if !res {
diff --git a/rust/signed_doc/tests/common/mod.rs b/rust/signed_doc/tests/common/mod.rs
index e309e43695e..c0028429a06 100644
--- a/rust/signed_doc/tests/common/mod.rs
+++ b/rust/signed_doc/tests/common/mod.rs
@@ -33,7 +33,7 @@ pub fn get_doc_kid_and_sk(
     doc: &CatalystSignedDocument,
     i: usize,
 ) -> anyhow::Result<(ed25519_dalek::SigningKey, CatalystId)> {
-    let doc_kids = doc.kids();
+    let doc_kids = doc.authors();
     let kid = doc_kids
         .get(i)
         .ok_or(anyhow::anyhow!("does not have a kid at index '{i}'"))?;
diff --git a/rust/signed_doc/tests/decoding.rs b/rust/signed_doc/tests/decoding.rs
index 2d68d070d43..2fdcf52ce2a 100644
--- a/rust/signed_doc/tests/decoding.rs
+++ b/rust/signed_doc/tests/decoding.rs
@@ -583,7 +583,7 @@ fn signed_doc_with_minimal_metadata_fields_case() -> TestCase {
                 anyhow::ensure!(
                     doc.encoded_content() == serde_json::to_vec(&serde_json::Value::Null)?
                 );
-                anyhow::ensure!(doc.kids().len() == 1);
+                anyhow::ensure!(doc.authors().len() == 1);
                 anyhow::ensure!(!doc.is_deprecated()?);
                 Ok(())
             }
@@ -673,7 +673,7 @@ fn signed_doc_with_complete_metadata_fields_case() -> TestCase {
                 anyhow::ensure!(doc.doc_meta().reply() == Some(&refs));
                 anyhow::ensure!(doc.doc_content_type() == Some(ContentType::Json));
                 anyhow::ensure!(doc.encoded_content() == serde_json::to_vec(&serde_json::Value::Null)?);
-                anyhow::ensure!(doc.kids().len() == 1);
+                anyhow::ensure!(doc.authors().len() == 1);
                 anyhow::ensure!(!doc.is_deprecated()?);
                 Ok(())
             }
@@ -1138,7 +1138,7 @@ fn signed_doc_with_non_strict_deterministic_decoding_wrong_order() -> TestCase {
                 anyhow::ensure!(
                     doc.encoded_content() == serde_json::to_vec(&serde_json::Value::Null)?
                 );
-                anyhow::ensure!(doc.kids().len() == 1);
+                anyhow::ensure!(doc.authors().len() == 1);
                 Ok(())
             }
         })),
@@ -1197,7 +1197,7 @@ fn signed_doc_with_non_supported_metadata_invalid() -> TestCase {
                 anyhow::ensure!(
                     doc.encoded_content() == serde_json::to_vec(&serde_json::Value::Null)?
                 );
-                anyhow::ensure!(doc.kids().len() == 0);
+                anyhow::ensure!(doc.authors().len() == 0);
                 Ok(())
             }
         })),
@@ -1265,7 +1265,7 @@ fn signed_doc_with_kid_in_id_form_invalid() -> TestCase {
                 anyhow::ensure!(
                     doc.encoded_content() == serde_json::to_vec(&serde_json::Value::Null)?
                 );
-                anyhow::ensure!(doc.kids().len() == 1);
+                anyhow::ensure!(doc.authors().len() == 1);
                 Ok(())
             }
         })),