diff --git a/sdk/hints/memoryh/db.go b/sdk/hints/memoryh/db.go
index c840e5e..573626f 100644
--- a/sdk/hints/memoryh/db.go
+++ b/sdk/hints/memoryh/db.go
@@ -14,7 +14,7 @@ var _ hints.HintsDB = (*HintDB)(nil)
 
 type HintDB struct {
 	RelayBySerial         []string
-	OrderedRelaysByPubKey map[string]RelaysForPubKey
+	OrderedRelaysByPubKey map[string][]RelayEntry
 
 	sync.Mutex
 }
@@ -22,7 +22,7 @@ type HintDB struct {
 func NewHintDB() *HintDB {
 	return &HintDB{
 		RelayBySerial:         make([]string, 0, 100),
-		OrderedRelaysByPubKey: make(map[string]RelaysForPubKey, 100),
+		OrderedRelaysByPubKey: make(map[string][]RelayEntry, 100),
 	}
 }
 
@@ -41,9 +41,7 @@ func (db *HintDB) Save(pubkey string, relay string, key hints.HintKey, ts nostr.
 	defer db.Unlock()
 	// fmt.Println(" ", relay, "index", relayIndex, "--", "adding", hints.HintKey(key).String(), ts)
 
-	rfpk, _ := db.OrderedRelaysByPubKey[pubkey]
-
-	entries := rfpk.Entries
+	entries, _ := db.OrderedRelaysByPubKey[pubkey]
 
 	entryIndex := slices.IndexFunc(entries, func(re RelayEntry) bool { return re.Relay == relayIndex })
 	if entryIndex == -1 {
@@ -66,9 +64,7 @@ func (db *HintDB) Save(pubkey string, relay string, key hints.HintKey, ts nostr.
 		}
 	}
 
-	rfpk.Entries = entries
-
-	db.OrderedRelaysByPubKey[pubkey] = rfpk
+	db.OrderedRelaysByPubKey[pubkey] = entries
 }
 
 func (db *HintDB) TopN(pubkey string, n int) []string {
@@ -76,13 +72,13 @@ func (db *HintDB) TopN(pubkey string, n int) []string {
 	defer db.Unlock()
 
 	urls := make([]string, 0, n)
-	if rfpk, ok := db.OrderedRelaysByPubKey[pubkey]; ok {
+	if entries, ok := db.OrderedRelaysByPubKey[pubkey]; ok {
 		// sort everything from scratch
-		slices.SortFunc(rfpk.Entries, func(a, b RelayEntry) int {
+		slices.SortFunc(entries, func(a, b RelayEntry) int {
 			return int(b.Sum() - a.Sum())
 		})
 
-		for i, re := range rfpk.Entries {
+		for i, re := range entries {
 			urls = append(urls, db.RelayBySerial[re.Relay])
 			if i+1 == n {
 				break
@@ -97,9 +93,9 @@ func (db *HintDB) PrintScores() {
 	defer db.Unlock()
 
 	fmt.Println("= print scores")
-	for pubkey, rfpk := range db.OrderedRelaysByPubKey {
+	for pubkey, entries := range db.OrderedRelaysByPubKey {
 		fmt.Println("== relay scores for", pubkey)
-		for i, re := range rfpk.Entries {
+		for i, re := range entries {
 			fmt.Printf("  %3d :: %30s (%3d) ::> %12d\n", i, db.RelayBySerial[re.Relay], re.Relay, re.Sum())
 			// for i, ts := range re.Timestamps {
 			// 	fmt.Printf("                             %-10d %s\n", ts, hints.HintKey(i).String())
@@ -113,13 +109,13 @@ func (db *HintDB) GetDetailedScores(pubkey string, n int) []hints.RelayScores {
 	defer db.Unlock()
 
 	result := make([]hints.RelayScores, 0, n)
-	if rfpk, ok := db.OrderedRelaysByPubKey[pubkey]; ok {
+	if entries, ok := db.OrderedRelaysByPubKey[pubkey]; ok {
 		// sort everything from scratch
-		slices.SortFunc(rfpk.Entries, func(a, b RelayEntry) int {
+		slices.SortFunc(entries, func(a, b RelayEntry) int {
 			return int(b.Sum() - a.Sum())
 		})
 
-		for i, re := range rfpk.Entries {
+		for i, re := range entries {
 			if i >= n {
 				break
 			}
@@ -133,10 +129,6 @@ func (db *HintDB) GetDetailedScores(pubkey string, n int) []hints.RelayScores {
 	return result
 }
 
-type RelaysForPubKey struct {
-	Entries []RelayEntry
-}
-
 type RelayEntry struct {
 	Relay      int
 	Timestamps [4]nostr.Timestamp