diff --git a/crates/brk_query/src/impl/block/info.rs b/crates/brk_query/src/impl/block/info.rs
index 9aa38c5f7..ae2d7c36d 100644
--- a/crates/brk_query/src/impl/block/info.rs
+++ b/crates/brk_query/src/impl/block/info.rs
@@ -206,12 +206,13 @@ impl Query {
             .total
             .sum
             .collect_range_at(begin, end);
+        let utxo_begin = begin.saturating_sub(1);
         let utxo_set_sizes = computer
             .outputs
             .count
             .unspent
             .height
-            .collect_range_at(begin, end);
+            .collect_range_at(utxo_begin, end);
         let input_volumes = computer
             .transactions
             .volume
@@ -278,6 +279,9 @@ impl Query {
             let subsidy = subsidy_sats[i];
             let total_inputs = (*input_counts[i]).saturating_sub(1);
             let total_outputs = *output_counts[i];
+            let utxo_idx = begin + i - utxo_begin;
+            let utxo_set_size = *utxo_set_sizes[utxo_idx];
+            let prev_utxo_set_size = if utxo_idx > 0 { *utxo_set_sizes[utxo_idx - 1] } else { 0 };
             let vsize = weight.to_vbytes_ceil();
             let total_fees_u64 = u64::from(total_fees);
             let non_coinbase = tx_count.saturating_sub(1) as u64;
@@ -379,8 +383,8 @@ impl Query {
                 segwit_total_size: *segwit_sizes[i],
                 segwit_total_weight: segwit_weights[i],
                 header: raw_header.to_lower_hex_string(),
-                utxo_set_change: total_outputs as i64 - total_inputs as i64,
-                utxo_set_size: *utxo_set_sizes[i],
+                utxo_set_change: utxo_set_size as i64 - prev_utxo_set_size as i64,
+                utxo_set_size,
                 total_input_amt,
                 virtual_size: vsize as f64,
                 price: prices[i],
@@ -554,10 +558,7 @@ impl Query {
         let coinbase_signature = tx
             .output
             .iter()
-            .find(|output| {
-                bitcoin::Address::from_script(&output.script_pubkey, bitcoin::Network::Bitcoin)
-                    .is_ok()
-            })
+            .find(|output| !output.script_pubkey.is_op_return())
             .or(tx.output.first())
             .map(|output| output.script_pubkey.to_asm_string())
             .unwrap_or_default();
diff --git a/crates/brk_types/src/output_type.rs b/crates/brk_types/src/output_type.rs
index 7a191e160..d6b178f7a 100644
--- a/crates/brk_types/src/output_type.rs
+++ b/crates/brk_types/src/output_type.rs
@@ -26,9 +26,15 @@ use crate::AddrBytes;
 #[repr(u8)]
 /// Type (P2PKH, P2WPKH, P2SH, P2TR, etc.)
 pub enum OutputType {
+    #[serde(rename = "p2pk")]
+    #[strum(serialize = "p2pk")]
     P2PK65,
+    #[serde(rename = "p2pk")]
+    #[strum(serialize = "p2pk")]
     P2PK33,
     P2PKH,
+    #[serde(rename = "multisig")]
+    #[strum(serialize = "multisig")]
     P2MS,
     P2SH,
     #[serde(rename = "op_return")]
diff --git a/crates/brk_types/src/txout.rs b/crates/brk_types/src/txout.rs
index b5b753e0b..0da7f103c 100644
--- a/crates/brk_types/src/txout.rs
+++ b/crates/brk_types/src/txout.rs
@@ -92,12 +92,17 @@ impl Serialize for TxOut {
     where
         S: Serializer,
     {
-        let addr = self.addr();
+        let output_type = self.type_();
+        // P2PK has no standard address format — don't include scriptpubkey_address
+        let addr = match output_type {
+            OutputType::P2PK65 | OutputType::P2PK33 => None,
+            _ => self.addr(),
+        };
         let field_count = if addr.is_some() { 5 } else { 4 };
         let mut state = serializer.serialize_struct("TxOut", field_count)?;
         state.serialize_field("scriptpubkey", &self.script_pubkey.to_hex_string())?;
         state.serialize_field("scriptpubkey_asm", &self.script_pubkey_asm())?;
-        state.serialize_field("scriptpubkey_type", &self.type_())?;
+        state.serialize_field("scriptpubkey_type", &output_type)?;
         if let Some(addr) = &addr {
             state.serialize_field("scriptpubkey_address", addr)?;
         }
diff --git a/modules/brk-client/index.js b/modules/brk-client/index.js
index b8a24a86a..1a87eebb5 100644
--- a/modules/brk-client/index.js
+++ b/modules/brk-client/index.js
@@ -674,7 +674,7 @@
 /**
  * Type (P2PKH, P2WPKH, P2SH, P2TR, etc.)
  *
- * @typedef {("p2pk65"|"p2pk33"|"p2pkh"|"p2ms"|"p2sh"|"op_return"|"v0_p2wpkh"|"v0_p2wsh"|"v1_p2tr"|"p2a"|"empty"|"unknown")} OutputType
+ * @typedef {("p2pk"|"p2pk"|"p2pkh"|"multisig"|"p2sh"|"op_return"|"v0_p2wpkh"|"v0_p2wsh"|"v1_p2tr"|"p2a"|"empty"|"unknown")} OutputType
  */
 /** @typedef {TypeIndex} P2AAddrIndex */
 /** @typedef {U8x2} P2ABytes */
diff --git a/packages/brk_client/brk_client/__init__.py b/packages/brk_client/brk_client/__init__.py
index c213ca787..d18a0d9a6 100644
--- a/packages/brk_client/brk_client/__init__.py
+++ b/packages/brk_client/brk_client/__init__.py
@@ -133,7 +133,7 @@ Open = Dollars
 OpReturnIndex = TypeIndex
 OutPoint = int
 # Type (P2PKH, P2WPKH, P2SH, P2TR, etc.)
-OutputType = Literal["p2pk65", "p2pk33", "p2pkh", "p2ms", "p2sh", "op_return", "v0_p2wpkh", "v0_p2wsh", "v1_p2tr", "p2a", "empty", "unknown"]
+OutputType = Literal["p2pk", "p2pk", "p2pkh", "multisig", "p2sh", "op_return", "v0_p2wpkh", "v0_p2wsh", "v1_p2tr", "p2a", "empty", "unknown"]
 P2AAddrIndex = TypeIndex
 U8x2 = List[int]
 P2ABytes = U8x2