feat: expose ordinal verification

catalystdao · Feb 24, 2024 · 2c451e8 · 2c451e8
1 parent 55c6f67
commit 2c451e8
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Showing 2 changed files with 53 additions and 3 deletions.
diff --git a/src/BtcTxVerifier.sol b/src/BtcTxVerifier.sol
@@ -21,7 +21,7 @@ contract BtcTxVerifier is IBtcTxVerifier {
         uint256 blockNum,
         BtcTxProof calldata inclusionProof,
         uint256 txOutIx,
-        bytes calldata destScriptHash,
+        bytes calldata outputScript,
         uint256 amountSats
     ) external view returns (bool) {
         {
@@ -41,7 +41,42 @@ contract BtcTxVerifier is IBtcTxVerifier {
                 blockHash,
                 inclusionProof,
                 txOutIx,
-                destScriptHash,
+                outputScript,
+                amountSats
+            )
+        ) revert InvalidProof();
+
+        return true;
+    }
+
+    function verifyOrdinal(
+        uint256 minConfirmations,
+        uint256 blockNum,
+        BtcTxProof calldata inclusionProof,
+        uint256 txInId,
+        uint32 txInPrevTxIndex,
+        bytes calldata outputScript,
+        uint256 amountSats
+    ) external view returns (bool) {
+        {
+            uint256 currentHeight = mirror.getLatestBlockHeight();
+
+            if (currentHeight < blockNum) revert NoBlock(currentHeight, blockNum);
+
+            unchecked {
+                if (currentHeight + 1 - blockNum < minConfirmations) revert TooFewConfirmations(currentHeight + 1 - blockNum, minConfirmations);
+            }
+        }
+
+        bytes32 blockHash = mirror.getBlockHash(blockNum);
+
+        if(
+            !BtcProof.validateOrdinalTransfer(
+                blockHash,
+                inclusionProof,
+                txInId,
+                txInPrevTxIndex,
+                outputScript,
                 amountSats
             )
         ) revert InvalidProof();

diff --git a/src/interfaces/IBtcTxVerifier.sol b/src/interfaces/IBtcTxVerifier.sol
@@ -20,10 +20,25 @@ interface IBtcTxVerifier {
         uint256 blockNum,
         BtcTxProof calldata inclusionProof,
         uint256 txOutIx,
-        bytes calldata destScriptHash,
+        bytes calldata outputScript,
         uint256 amountSats
     ) external view returns (bool);
 
     /** @notice Returns the underlying mirror associated with this verifier. */
     function mirror() external view returns (IBtcPrism);
+
+    /**
+     * @notice Verifies that the a transaction cleared, sending a specific ordinal to
+     *         a given address. Specifically, verifies a proof that the tx was
+     *         in block N, and that block N has at least M confirmations.
+     */
+    function verifyOrdinal(
+        uint256 minConfirmations,
+        uint256 blockNum,
+        BtcTxProof calldata inclusionProof,
+        uint256 txInId,
+        uint32 txInPrevTxIndex,
+        bytes calldata outputScript,
+        uint256 amountSats
+    ) external view returns (bool);
 }