diff --git a/Cargo.lock b/Cargo.lock
index b3419a85..01edbcfe 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8123,7 +8123,6 @@ dependencies = [
 name = "serai-bitcoin-processor"
 version = "0.1.0"
 dependencies = [
- "async-trait",
  "bitcoin-serai",
  "borsh",
  "ciphersuite",
@@ -8349,7 +8348,6 @@ version = "0.1.0"
 name = "serai-ethereum-processor"
 version = "0.1.0"
 dependencies = [
- "async-trait",
  "borsh",
  "const-hex",
  "env_logger",
@@ -8514,7 +8512,6 @@ dependencies = [
 name = "serai-monero-processor"
 version = "0.1.0"
 dependencies = [
- "async-trait",
  "borsh",
  "ciphersuite",
  "dalek-ff-group",
@@ -8644,7 +8641,6 @@ dependencies = [
 name = "serai-processor-bin"
 version = "0.1.0"
 dependencies = [
- "async-trait",
  "borsh",
  "ciphersuite",
  "dkg",
@@ -8718,7 +8714,6 @@ dependencies = [
 name = "serai-processor-primitives"
 version = "0.1.0"
 dependencies = [
- "async-trait",
  "borsh",
  "group",
  "log",
@@ -8732,7 +8727,6 @@ dependencies = [
 name = "serai-processor-scanner"
 version = "0.1.0"
 dependencies = [
- "async-trait",
  "borsh",
  "group",
  "hex",
@@ -8762,7 +8756,6 @@ dependencies = [
 name = "serai-processor-signers"
 version = "0.1.0"
 dependencies = [
- "async-trait",
  "borsh",
  "ciphersuite",
  "frost-schnorrkel",
diff --git a/processor/monero/src/primitives/block.rs b/processor/monero/src/primitives/block.rs
index ad28b0c1..634a0fbb 100644
--- a/processor/monero/src/primitives/block.rs
+++ b/processor/monero/src/primitives/block.rs
@@ -2,13 +2,13 @@ use std::collections::HashMap;
 
 use ciphersuite::{Ciphersuite, Ed25519};
 
-use monero_wallet::{transaction::Transaction, block::Block as MBlock};
+use monero_wallet::{transaction::Transaction, block::Block as MBlock, ViewPairError, GuaranteedViewPair, GuaranteedScanner};
 
 use serai_client::networks::monero::Address;
 
 use primitives::{ReceivedOutput, EventualityTracker};
 
-use crate::{output::Output, transaction::Eventuality};
+use crate::{EXTERNAL_SUBADDRESS, BRANCH_SUBADDRESS, CHANGE_SUBADDRESS, FORWARDED_SUBADDRESS, output::Output, transaction::Eventuality};
 
 #[derive(Clone, Debug)]
 pub(crate) struct BlockHeader(pub(crate) MBlock);
@@ -37,6 +37,15 @@ impl primitives::Block for Block {
   }
 
   fn scan_for_outputs_unordered(&self, key: Self::Key) -> Vec<Self::Output> {
+    let view_pair = match GuaranteedViewPair::new(key.0, additional_key) {
+      Ok(view_pair) => view_pair,
+      Err(ViewPairError::TorsionedSpendKey) => unreachable!("dalek_ff_group::EdwardsPoint has torsion"),
+  };
+    let mut scanner = GuaranteedScanner::new(view_pair);
+    scanner.register_subaddress(EXTERNAL_SUBADDRESS.unwrap());
+    scanner.register_subaddress(BRANCH_SUBADDRESS.unwrap());
+    scanner.register_subaddress(CHANGE_SUBADDRESS.unwrap());
+    scanner.register_subaddress(FORWARDED_SUBADDRESS.unwrap());
     todo!("TODO")
   }
 
diff --git a/processor/monero/src/primitives/mod.rs b/processor/monero/src/primitives/mod.rs
index fba52dd9..de057399 100644
--- a/processor/monero/src/primitives/mod.rs
+++ b/processor/monero/src/primitives/mod.rs
@@ -1,3 +1,10 @@
+use monero_wallet::address::SubaddressIndex;
+
 pub(crate) mod output;
 pub(crate) mod transaction;
 pub(crate) mod block;
+
+pub(crate) const EXTERNAL_SUBADDRESS: Option<SubaddressIndex> = SubaddressIndex::new(1, 0);
+pub(crate) const BRANCH_SUBADDRESS: Option<SubaddressIndex> = SubaddressIndex::new(2, 0);
+pub(crate) const CHANGE_SUBADDRESS: Option<SubaddressIndex> = SubaddressIndex::new(2, 1);
+pub(crate) const FORWARDED_SUBADDRESS: Option<SubaddressIndex> = SubaddressIndex::new(2, 2);
diff --git a/processor/monero/src/primitives/output.rs b/processor/monero/src/primitives/output.rs
index d3eb3be3..385429c2 100644
--- a/processor/monero/src/primitives/output.rs
+++ b/processor/monero/src/primitives/output.rs
@@ -14,6 +14,8 @@ use serai_client::{
 
 use primitives::{OutputType, ReceivedOutput};
 
+use crate::{EXTERNAL_SUBADDRESS, BRANCH_SUBADDRESS, CHANGE_SUBADDRESS, FORWARDED_SUBADDRESS};
+
 #[rustfmt::skip]
 #[derive(
   Clone, Copy, PartialEq, Eq, Default, Hash, Debug, Encode, Decode, BorshSerialize, BorshDeserialize,
@@ -44,7 +46,19 @@ impl ReceivedOutput<<Ed25519 as Ciphersuite>::G, Address> for Output {
   type TransactionId = [u8; 32];
 
   fn kind(&self) -> OutputType {
-    todo!("TODO")
+    if self.0.subaddress() == EXTERNAL_SUBADDRESS {
+      return OutputType::External;
+    }
+    if self.0.subaddress() == BRANCH_SUBADDRESS {
+      return OutputType::Branch;
+    }
+    if self.0.subaddress() == CHANGE_SUBADDRESS {
+      return OutputType::Change;
+    }
+    if self.0.subaddress() == FORWARDED_SUBADDRESS {
+      return OutputType::Forwarded;
+    }
+    unreachable!("scanned output to unknown subaddress");
   }
 
   fn id(&self) -> Self::Id {