diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/ETag.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/ETag.kt
index 3e35539c6..a11296052 100644
--- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/ETag.kt
+++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/ETag.kt
@@ -66,6 +66,11 @@ data class ETag(
             eventId: HexKey,
         ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] == eventId
 
+        fun isTagged(
+            tag: Array<String>,
+            eventIds: Set<HexKey>,
+        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] in eventIds
+
         fun parse(tag: Array<String>): ETag? {
             ensure(tag.has(1)) { return null }
             ensure(tag[0] == TAG_NAME) { return null }
diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/EventExt.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/EventExt.kt
index c63fa2f26..35d9ca937 100644
--- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/EventExt.kt
+++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/EventExt.kt
@@ -34,3 +34,5 @@ fun Event.taggedEventIds() = tags.taggedEventIds()
 fun Event.firstTaggedEvent() = tags.firstTaggedEvent()
 
 fun Event.isTaggedEvent(idHex: String) = tags.isTaggedEvent(idHex)
+
+fun Event.isTaggedEvents(idHexes: Set<HexKey>) = tags.isTaggedEvents(idHexes)
diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/TagArrayExt.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/TagArrayExt.kt
index a4be2a93e..cc8bee23f 100644
--- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/TagArrayExt.kt
+++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip01Core/tags/events/TagArrayExt.kt
@@ -36,4 +36,6 @@ fun TagArray.taggedEventIds() = this.mapNotNull(ETag::parseId)
 
 fun TagArray.firstTaggedEvent() = this.firstNotNullOfOrNull(ETag::parse)
 
-fun TagArray.isTaggedEvent(idHex: String) = this.any(ETag::isTagged, idHex)
+fun TagArray.isTaggedEvent(idHex: HexKey) = this.any(ETag::isTagged, idHex)
+
+fun TagArray.isTaggedEvents(idHexes: Set<HexKey>) = this.any(ETag::isTagged, idHexes)
diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip09Deletions/DeletionEvent.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip09Deletions/DeletionEvent.kt
index 4d313572d..86a2ae7e4 100644
--- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip09Deletions/DeletionEvent.kt
+++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip09Deletions/DeletionEvent.kt
@@ -30,9 +30,11 @@ import com.vitorpamplona.quartz.nip01Core.hints.EventHintProvider
 import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate
 import com.vitorpamplona.quartz.nip01Core.tags.aTag.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.aTag.aTag
+import com.vitorpamplona.quartz.nip01Core.tags.aTag.isTaggedAddressableKind
 import com.vitorpamplona.quartz.nip01Core.tags.aTag.taggedAddresses
 import com.vitorpamplona.quartz.nip01Core.tags.events.ETag
 import com.vitorpamplona.quartz.nip01Core.tags.events.eTag
+import com.vitorpamplona.quartz.nip01Core.tags.events.isTaggedEvents
 import com.vitorpamplona.quartz.nip01Core.tags.events.taggedEventIds
 import com.vitorpamplona.quartz.nip01Core.tags.events.taggedEvents
 import com.vitorpamplona.quartz.nip01Core.tags.kinds.kinds
@@ -65,6 +67,10 @@ class DeletionEvent(
 
     fun deleteEventIds() = taggedEventIds()
 
+    fun deletesAnyEventIn(eventIds: Set<HexKey>) = isTaggedEvents(eventIds)
+
+    fun deleteAddressesWithKind(kind: Int) = isTaggedAddressableKind(kind)
+
     fun deleteAddresses() = taggedAddresses()
 
     fun deleteAddressIds() = tags.mapNotNull(ATag::parseAddressId)