diff --git a/quartz/src/androidTest/java/com/vitorpamplona/quartz/nip13Pow/PoWRankParserTest.kt b/quartz/src/androidTest/java/com/vitorpamplona/quartz/nip13Pow/PoWRankProcessorTest.kt
similarity index 74%
rename from quartz/src/androidTest/java/com/vitorpamplona/quartz/nip13Pow/PoWRankParserTest.kt
rename to quartz/src/androidTest/java/com/vitorpamplona/quartz/nip13Pow/PoWRankProcessorTest.kt
index d999449ff..863a2c147 100644
--- a/quartz/src/androidTest/java/com/vitorpamplona/quartz/nip13Pow/PoWRankParserTest.kt
+++ b/quartz/src/androidTest/java/com/vitorpamplona/quartz/nip13Pow/PoWRankProcessorTest.kt
@@ -26,24 +26,24 @@ import org.junit.Test
 import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
-class PoWRankParserTest {
+class PoWRankProcessorTest {
     @Test
     fun setPoW() {
-        assertEquals(26, PoWRankParser.calculatePowRankOf("00000026c91e9fc75fdb95b367776e2594b931cebda6d5ca3622501006669c9e"))
+        assertEquals(26, PoWRankProcessor.calculatePowRankOf("00000026c91e9fc75fdb95b367776e2594b931cebda6d5ca3622501006669c9e"))
     }
 
     @Test
     fun setPoWIfCommited25() {
-        assertEquals(25, PoWRankParser.compute("00000026c91e9fc75fdb95b367776e2594b931cebda6d5ca3622501006669c9e", 25))
+        assertEquals(25, PoWRankProcessor.compute("00000026c91e9fc75fdb95b367776e2594b931cebda6d5ca3622501006669c9e", 25))
     }
 
     @Test
     fun setPoWIfCommited26() {
-        assertEquals(26, PoWRankParser.compute("00000026c91e9fc75fdb95b367776e2594b931cebda6d5ca3622501006669c9e", 26))
+        assertEquals(26, PoWRankProcessor.compute("00000026c91e9fc75fdb95b367776e2594b931cebda6d5ca3622501006669c9e", 26))
     }
 
     @Test
     fun setPoWIfCommited27() {
-        assertEquals(26, PoWRankParser.compute("00000026c91e9fc75fdb95b367776e2594b931cebda6d5ca3622501006669c9e", 27))
+        assertEquals(26, PoWRankProcessor.compute("00000026c91e9fc75fdb95b367776e2594b931cebda6d5ca3622501006669c9e", 27))
     }
 }
diff --git a/quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/tags/people/PTag.kt b/quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/tags/people/PTag.kt
index 3228a7b0a..acdbc6266 100644
--- a/quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/tags/people/PTag.kt
+++ b/quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/tags/people/PTag.kt
@@ -20,6 +20,7 @@
  */
 package com.vitorpamplona.quartz.nip01Core.tags.people
 
+import android.util.Log
 import androidx.compose.runtime.Immutable
 import com.vitorpamplona.quartz.nip01Core.HexKey
 import com.vitorpamplona.quartz.nip01Core.core.Tag
@@ -66,7 +67,10 @@ data class PTag(
         @JvmStatic
         fun parseKey(tag: Array<String>): HexKey? {
             if (tag.isNotName(TAG_NAME, TAG_SIZE)) return null
-            if (tag[1].length != 64) return null
+            if (tag[1].length != 64) {
+                Log.w("PTag", "Invalid `$TAG_NAME` value ${tag.joinToString(", ")}")
+                return null
+            }
             return tag[1]
         }
 
diff --git a/quartz/src/main/java/com/vitorpamplona/quartz/nip13Pow/EventExt.kt b/quartz/src/main/java/com/vitorpamplona/quartz/nip13Pow/EventExt.kt
index 7ad1062f7..a38053a73 100644
--- a/quartz/src/main/java/com/vitorpamplona/quartz/nip13Pow/EventExt.kt
+++ b/quartz/src/main/java/com/vitorpamplona/quartz/nip13Pow/EventExt.kt
@@ -22,7 +22,7 @@ package com.vitorpamplona.quartz.nip13Pow
 
 import com.vitorpamplona.quartz.nip01Core.core.Event
 
-fun Event.pow() = PoWRankParser.compute(id, tags.commitedPoW())
+fun Event.pow() = PoWRankProcessor.compute(id, tags.commitedPoW())
 
 fun Event.hasPoWTag() = tags.hasPoW()
 
@@ -34,7 +34,7 @@ fun Event.hasPoWTag() = tags.hasPoW()
 fun Event.strongPoWOrNull(min: Int = 20): Int? {
     val commitment = tags.commitedPoW()
     if (commitment != null) {
-        val pow = PoWRankParser.compute(id, commitment)
+        val pow = PoWRankProcessor.compute(id, commitment)
         if (pow >= min) {
             return pow
         }
diff --git a/quartz/src/main/java/com/vitorpamplona/quartz/nip13Pow/PoWRankParser.kt b/quartz/src/main/java/com/vitorpamplona/quartz/nip13Pow/PoWRankProcessor.kt
similarity index 98%
rename from quartz/src/main/java/com/vitorpamplona/quartz/nip13Pow/PoWRankParser.kt
rename to quartz/src/main/java/com/vitorpamplona/quartz/nip13Pow/PoWRankProcessor.kt
index ae51bd962..f47e1c0b4 100644
--- a/quartz/src/main/java/com/vitorpamplona/quartz/nip13Pow/PoWRankParser.kt
+++ b/quartz/src/main/java/com/vitorpamplona/quartz/nip13Pow/PoWRankProcessor.kt
@@ -22,7 +22,7 @@ package com.vitorpamplona.quartz.nip13Pow
 
 import com.vitorpamplona.quartz.nip01Core.HexKey
 
-class PoWRankParser {
+class PoWRankProcessor {
     companion object {
         @JvmStatic
         fun compute(