diff --git a/test/BTCDepositAddressDeriver.t.sol b/test/BTCDepositAddressDeriver.t.sol
index 462e593..dda9546 100644
--- a/test/BTCDepositAddressDeriver.t.sol
+++ b/test/BTCDepositAddressDeriver.t.sol
@@ -48,6 +48,149 @@ contract BTCDepositAddressDeriverTest is Test {
         );
     }
 
+    function testParseBTCTaprootAddress3() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "tb",
+            "tc1p0xlxvlhemja6c4dqv22uapctqupfhlxm9h8z3k2e72q4k9hcz7vq5zuyut"
+        );
+    }
+
+    function testParseBTCTaprootAddress4() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "bc",
+            "bc1p0xlxvlhemja6c4dqv22uapctqupfhlxm9h8z3k2e72q4k9hcz7vqh2y7hd"
+        );
+    }
+
+    function testParseBTCTaprootAddress5() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "bc",
+            "BC1S0XLXVLHEMJA6C4DQV22UAPCTQUPFHLXM9H8Z3K2E72Q4K9HCZ7VQ54WELL"
+        );
+    }
+
+    function testParseBTCTaprootAddress6() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "tb",
+            "tb1q0xlxvlhemja6c4dqv22uapctqupfhlxm9h8z3k2e72q4k9hcz7vq24jc47"
+        );
+    }
+
+    function testParseBTCTaprootAddress7() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "bc",
+            "bc1p38j9r5y49hruaue7wxjce0updqjuyyx0kh56v8s25huc6995vvpql3jow4"
+        );
+    }
+
+    function testParseBTCTaprootAddress8() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "bc",
+            "BC130XLXVLHEMJA6C4DQV22UAPCTQUPFHLXM9H8Z3K2E72Q4K9HCZ7VQ7ZWS8R"
+        );
+    }
+
+    function testParseBTCTaprootAddress9() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "bc",
+            "bc1pw5dgrnzv"
+        );
+    }
+
+    function testParseBTCTaprootAddress10() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "bc",
+            "bc1p0xlxvlhemja6c4dqv22uapctqupfhlxm9h8z3k2e72q4k9hcz7v8n0nx0muaewav253zgeav"
+        );
+    }
+
+    function testParseBTCTaprootAddress11() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "tb",
+            "tb1p0xlxvlhemja6c4dqv22uapctqupfhlxm9h8z3k2e72q4k9hcz7vq47Zagq"
+        );
+    }
+
+    function testParseBTCTaprootAddress12() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "bc",
+            "bc1p0xlxvlhemja6c4dqv22uapctqupfhlxm9h8z3k2e72q4k9hcz7v07qwwzcrf"
+        );
+    }
+
+    function testParseBTCTaprootAddress13() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "tb",
+            "tb1p0xlxvlhemja6c4dqv22uapctqupfhlxm9h8z3k2e72q4k9hcz7vpggkg4j"
+        );
+    }
+
+    function testParseBTCTaprootAddress14() public {
+        vm.expectRevert();
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "bc",
+            "bc1gmk9yu"
+        );
+    }
+
+    function testParseBTCTaprootAddress15() public {
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "bc",
+            "bc1p0xlxvlhemja6c4dqv22uapctqupfhlxm9h8z3k2e72q4k9hcz7vqzk5jj0"
+        );
+        assertEq(
+            x,
+            0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798
+        );
+        assertEq(
+            y,
+            0x483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8
+        );
+    }
+
+    function testParseBTCTaprootAddress16() public {
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "tb",
+            "tb1pqqqqp399et2xygdj5xreqhjjvcmzhxw4aywxecjdzew6hylgvsesf3hn0c"
+        );
+        assertEq(
+            x,
+            0xC4A5CAD46221B2A187905E5266362B99D5E91C6CE24D165DAB93E86433
+        );
+        assertEq(
+            y,
+            0xE938F4061E36DEF24C05DDCFD738363AAFF7BBC09267C7079451A0F169500766
+        );
+    }
+
+    function testParseBTCTaprootAddress17() public {
+        (uint256 x, uint256 y) = deriver.parseBTCTaprootAddress(
+            "bc",
+            "bc1pldma57nkrdrvtx7elspzgfa23qcxglzzunxxmqkwq8pnwpa4sd6s3406mu"
+        );
+        assertEq(
+            x,
+            0xFB77DA7A761B46C59BD9FC022427AA8830647C42E4CC6D82CE01C33707B58375
+        );
+        assertEq(
+            y,
+            0x68251ED41C7645E4AE49F68B0F4A207E4327501CB0B4BB7E3F5D86EF815794C6
+        );
+        //console.log("pubkey:", x, y);
+    }
+
+
     function testSetSeed() public {
         assertEq(deriver.wasSeedSet(), false);
         assertEq(deriver.btcAddr1(), "");