diff --git a/mapsync-mod/src/main/java/gjum/minecraft/mapsync/mod/sync/Cartography.java b/mapsync-mod/src/main/java/gjum/minecraft/mapsync/mod/sync/Cartography.java
index d5d5a8e..c874fc4 100644
--- a/mapsync-mod/src/main/java/gjum/minecraft/mapsync/mod/sync/Cartography.java
+++ b/mapsync-mod/src/main/java/gjum/minecraft/mapsync/mod/sync/Cartography.java
@@ -4,7 +4,6 @@
 import gjum.minecraft.mapsync.mod.data.BlockInfo;
 import gjum.minecraft.mapsync.mod.data.ChunkTile;
 import gjum.minecraft.mapsync.mod.net.buffers.BufferWriter;
-import gjum.minecraft.mapsync.mod.utils.Shortcuts;
 import java.io.ByteArrayOutputStream;
 import java.security.MessageDigest;
 import java.util.ArrayList;
@@ -34,13 +33,14 @@ public static ChunkTile chunkTileFromLevel(Level level, LevelChunk chunk) {
 		int dataVersion = 1;
 
 		// TODO speedup: don't serialize twice (once here, once later when writing to network)
-		final byte[] dataHash; {
-			final ByteArrayOutputStream os = new ByteArrayOutputStream();
-			Failable.run(() -> ChunkTile.writeColumns(columns, new BufferWriter(os)));
-			final MessageDigest md = Shortcuts.shaHash();
-			md.update(os.toByteArray());
-			dataHash = md.digest();
-		}
+		final byte[] dataHash = Failable.get(() -> {
+			final MessageDigest md = MessageDigest.getInstance("SHA-1");
+			try (final var os = new ByteArrayOutputStream()) {
+				ChunkTile.writeColumns(columns, new BufferWriter(os));
+				md.update(os.toByteArray());
+			}
+			return md.digest();
+		});
 
 		final ChunkPos chunkPos = chunk.getPos();
 		return new ChunkTile(dimension, chunkPos.x, chunkPos.z, timestamp, dataVersion, dataHash, columns);
diff --git a/mapsync-mod/src/main/java/gjum/minecraft/mapsync/mod/utils/Shortcuts.java b/mapsync-mod/src/main/java/gjum/minecraft/mapsync/mod/utils/Shortcuts.java
deleted file mode 100644
index 1f39f2a..0000000
--- a/mapsync-mod/src/main/java/gjum/minecraft/mapsync/mod/utils/Shortcuts.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package gjum.minecraft.mapsync.mod.utils;
-
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import org.jetbrains.annotations.NotNull;
-
-public final class Shortcuts {
-	public static @NotNull MessageDigest shaHash() {
-		try {
-			return MessageDigest.getInstance("SHA-1");
-		}
-		catch (final NoSuchAlgorithmException e) {
-			throw new IllegalStateException("unreachable", e);
-		}
-	}
-}