diff --git a/src/interfaces/ISignatureVerifier.sol b/src/interfaces/ISignatureVerifier.sol
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+// SPDX-License-Identifier: MIT OR Apache-2.0
+pragma solidity >=0.8.13 <0.9.0;
+
+/// @title ISignatureVerifier
+/// @notice Interface for the TIP-1020 Signature Verification Precompile
+/// @dev Deployed at 0x5165300000000000000000000000000000000000
+interface ISignatureVerifier {
+    error InvalidFormat();
+    error InvalidSignature();
+
+    /// @notice Recovers the signer of a Tempo signature (secp256k1, P256, WebAuthn).
+    /// @param hash The message hash that was signed
+    /// @param signature The encoded signature (see Tempo Transaction spec for formats)
+    /// @return signer Address of the signer if valid, reverts otherwise
+    function recover(bytes32 hash, bytes calldata signature) external view returns (address signer);
+
+    /// @notice Verifies a signer against a Tempo signature (secp256k1, P256, WebAuthn).
+    /// @param signer The input address verified against the recovered signer
+    /// @param hash The message hash that was signed
+    /// @param signature The encoded signature (see Tempo Transaction spec for formats)
+    /// @return True if the input address signed, false otherwise. Reverts on invalid signatures.
+    function verify(address signer, bytes32 hash, bytes calldata signature) external view returns (bool);
+}