diff --git a/internal/handshake/spv.go b/internal/handshake/spv.go
index c95011a..3a5cf4e 100644
--- a/internal/handshake/spv.go
+++ b/internal/handshake/spv.go
@@ -228,7 +228,12 @@ func (p *Proof) UnmarshalJSON(data []byte) error {
 	return nil
 }
 
-func (p *Proof) hashInternal(prefix []byte, prefixSize uint16, left []byte, right []byte) []byte {
+func (p *Proof) hashInternal(
+	prefix []byte,
+	prefixSize uint16,
+	left []byte,
+	right []byte,
+) []byte {
 	h, _ := blake2b.New256(nil)
 	if len(prefix) == 0 {
 		h.Write(ProofInternal)
@@ -261,7 +266,12 @@ func (p *Proof) hashValue(key []byte, value []byte) []byte {
 	return p.hashLeaf(key, tmpSum)
 }
 
-func (p *Proof) has(prefix []byte, prefixSize uint16, key []byte, depth uint16) bool {
+func (p *Proof) has(
+	prefix []byte,
+	prefixSize uint16,
+	key []byte,
+	depth uint16,
+) bool {
 	tmpLen := min(
 		prefixSize,
 		uint16(256-depth),
@@ -337,7 +347,10 @@ func (p *Proof) Verify(
 		}
 		depth -= 1
 		if hasBit(key, int(depth)) {
-			copy(next, p.hashInternal(item.Prefix, item.PrefixSize, item.Node, next))
+			copy(
+				next,
+				p.hashInternal(item.Prefix, item.PrefixSize, item.Node, next),
+			)
 		} else {
 			copy(next, p.hashInternal(item.Prefix, item.PrefixSize, next, item.Node))
 		}
diff --git a/internal/handshake/spv_test.go b/internal/handshake/spv_test.go
index d313cb5..4171c63 100644
--- a/internal/handshake/spv_test.go
+++ b/internal/handshake/spv_test.go
@@ -20,8 +20,12 @@ func TestVerifySpvProof(t *testing.T) {
 	}{
 		// Domain "name"
 		{
-			root: decodeHex("5174d1e0d32c4a31b79c71f4e9e26904a813ec19a76087758f71e99f9f90e393"),
-			key:  decodeHex("859cbd19b98e068fe07e440cb69f824d74fc8d5715f272d6dccf464fe0aa6c71"),
+			root: decodeHex(
+				"5174d1e0d32c4a31b79c71f4e9e26904a813ec19a76087758f71e99f9f90e393",
+			),
+			key: decodeHex(
+				"859cbd19b98e068fe07e440cb69f824d74fc8d5715f272d6dccf464fe0aa6c71",
+			),
 			proofJson: `
 			{
 			      "type": "TYPE_SHORT",
@@ -123,8 +127,12 @@ func TestVerifySpvProof(t *testing.T) {
 		},
 		// Domain "trees"
 		{
-			root: decodeHex("5174d1e0d32c4a31b79c71f4e9e26904a813ec19a76087758f71e99f9f90e393"),
-			key:  decodeHex("92ec68524dbcc44bc3ff4847ed45e3a86789009d862499ce558c793498413cec"),
+			root: decodeHex(
+				"5174d1e0d32c4a31b79c71f4e9e26904a813ec19a76087758f71e99f9f90e393",
+			),
+			key: decodeHex(
+				"92ec68524dbcc44bc3ff4847ed45e3a86789009d862499ce558c793498413cec",
+			),
 			proofJson: `
 			{
 			      "type": "TYPE_EXISTS",
@@ -244,8 +252,12 @@ func TestVerifySpvProof(t *testing.T) {
 		},
 		// Domain "blinklabs"
 		{
-			root: decodeHex("5174d1e0d32c4a31b79c71f4e9e26904a813ec19a76087758f71e99f9f90e393"),
-			key:  decodeHex("66d0eae73152781048a2d83dd103a6dc155d162e72fba88d055f32d99580cef8"),
+			root: decodeHex(
+				"5174d1e0d32c4a31b79c71f4e9e26904a813ec19a76087758f71e99f9f90e393",
+			),
+			key: decodeHex(
+				"66d0eae73152781048a2d83dd103a6dc155d162e72fba88d055f32d99580cef8",
+			),
 			proofJson: `
 			{
 			      "type": "TYPE_EXISTS",
diff --git a/internal/handshake/transaction_test.go b/internal/handshake/transaction_test.go
index 88d1712..b302155 100644
--- a/internal/handshake/transaction_test.go
+++ b/internal/handshake/transaction_test.go
@@ -16,7 +16,9 @@ import (
 
 func TestTransactionHash(t *testing.T) {
 	// From TX 1881afbe757f9d433144edf49e29c7f6bbfdbc1941d06792dc5ee13020d63570 on mainnet
-	testTxBytes := decodeHex("00000000010000000000000000000000000000000000000000000000000000000000000000ffffffff3b2cf8140134369b3b00000000001498c8297a67eb81ec36253828b5621a601ba2328a0000a62204000306566961425443087c524fd539e1eab8080000000000000000")
+	testTxBytes := decodeHex(
+		"00000000010000000000000000000000000000000000000000000000000000000000000000ffffffff3b2cf8140134369b3b00000000001498c8297a67eb81ec36253828b5621a601ba2328a0000a62204000306566961425443087c524fd539e1eab8080000000000000000",
+	)
 	expectedHash := "1881afbe757f9d433144edf49e29c7f6bbfdbc1941d06792dc5ee13020d63570"
 	expectedWitnessHash := "d36b1e9861dd504629b053d14d9801b295667a4c7002c9d2836be502bfdb3b3a"
 	br := bytes.NewReader(testTxBytes)