diff --git a/local-tests/tests/testDelegatingCapacityCreditsNFTToAnotherWalletToPkpSign.ts b/local-tests/tests/testDelegatingCapacityCreditsNFTToAnotherWalletToPkpSign.ts
index 44ddf4e64..d5f67581b 100644
--- a/local-tests/tests/testDelegatingCapacityCreditsNFTToAnotherWalletToPkpSign.ts
+++ b/local-tests/tests/testDelegatingCapacityCreditsNFTToAnotherWalletToPkpSign.ts
@@ -1,3 +1,5 @@
+import { ethers } from 'ethers';
+
 import { getEoaSessionSigsWithCapacityDelegations } from 'local-tests/setup/session-sigs/get-eoa-session-sigs';
 import { TinnyEnvironment } from 'local-tests/setup/tinny-environment';
 
@@ -92,5 +94,21 @@ export const testDelegatingCapacityCreditsNFTToAnotherWalletToPkpSign = async (
     throw new Error(`Expected "recid" to be parseable as a number`);
   }
 
+  const signature = ethers.utils.joinSignature({
+    r: '0x' + res.r,
+    s: '0x' + res.s,
+    recoveryParam: res.recid,
+  });
+  const recoveredPubKey = ethers.utils.recoverPublicKey(
+    alice.loveLetter,
+    signature
+  );
+  if (recoveredPubKey !== `0x${res.publicKey.toLowerCase()}`) {
+    throw new Error(`Expected recovered public key to match res.publicKey`);
+  }
+  if (recoveredPubKey !== `0x${bob.pkp.publicKey.toLowerCase()}`) {
+    throw new Error(`Expected recovered public key to match bob.pkp.publicKey`);
+  }
+
   console.log('✅ res:', res);
 };
diff --git a/local-tests/tests/testUseCapacityDelegationAuthSigWithUnspecifiedCapacityTokenIdToPkpSign.ts b/local-tests/tests/testUseCapacityDelegationAuthSigWithUnspecifiedCapacityTokenIdToPkpSign.ts
index 8daefbec5..e8ad746c2 100644
--- a/local-tests/tests/testUseCapacityDelegationAuthSigWithUnspecifiedCapacityTokenIdToPkpSign.ts
+++ b/local-tests/tests/testUseCapacityDelegationAuthSigWithUnspecifiedCapacityTokenIdToPkpSign.ts
@@ -1,3 +1,5 @@
+import { ethers } from 'ethers';
+
 import { getEoaSessionSigsWithCapacityDelegations } from 'local-tests/setup/session-sigs/get-eoa-session-sigs';
 import { TinnyEnvironment } from 'local-tests/setup/tinny-environment';
 
@@ -94,5 +96,23 @@ export const testUseCapacityDelegationAuthSigWithUnspecifiedCapacityTokenIdToPkp
       throw new Error(`Expected "recid" to be parseable as a number`);
     }
 
+    const signature = ethers.utils.joinSignature({
+      r: '0x' + res.r,
+      s: '0x' + res.s,
+      recoveryParam: res.recid,
+    });
+    const recoveredPubKey = ethers.utils.recoverPublicKey(
+      alice.loveLetter,
+      signature
+    );
+    if (recoveredPubKey !== `0x${res.publicKey.toLowerCase()}`) {
+      throw new Error(`Expected recovered public key to match res.publicKey`);
+    }
+    if (recoveredPubKey !== `0x${bob.pkp.publicKey.toLowerCase()}`) {
+      throw new Error(
+        `Expected recovered public key to match bob.pkp.publicKey`
+      );
+    }
+
     console.log('✅ res:', res);
   };
diff --git a/local-tests/tests/testUseCapacityDelegationAuthSigWithUnspecifiedDelegateesToPkpSign.ts b/local-tests/tests/testUseCapacityDelegationAuthSigWithUnspecifiedDelegateesToPkpSign.ts
index e479d9c3a..ba68e4258 100644
--- a/local-tests/tests/testUseCapacityDelegationAuthSigWithUnspecifiedDelegateesToPkpSign.ts
+++ b/local-tests/tests/testUseCapacityDelegationAuthSigWithUnspecifiedDelegateesToPkpSign.ts
@@ -1,3 +1,5 @@
+import { ethers } from 'ethers';
+
 import { getEoaSessionSigsWithCapacityDelegations } from 'local-tests/setup/session-sigs/get-eoa-session-sigs';
 import { TinnyEnvironment } from 'local-tests/setup/tinny-environment';
 
@@ -86,6 +88,26 @@ export const testUseCapacityDelegationAuthSigWithUnspecifiedDelegateesToPkpSign
       throw new Error(`Expected "signature" to start with 0x`);
     }
 
+    const signature = ethers.utils.joinSignature({
+      r: '0x' + runWithSessionSigs.r,
+      s: '0x' + runWithSessionSigs.s,
+      recoveryParam: runWithSessionSigs.recid,
+    });
+    const recoveredPubKey = ethers.utils.recoverPublicKey(
+      alice.loveLetter,
+      signature
+    );
+    if (recoveredPubKey !== `0x${runWithSessionSigs.publicKey.toLowerCase()}`) {
+      throw new Error(
+        `Expected recovered public key to match runWithSessionSigs.publicKey`
+      );
+    }
+    if (recoveredPubKey !== `0x${bob.pkp.publicKey.toLowerCase()}`) {
+      throw new Error(
+        `Expected recovered public key to match bob.pkp.publicKey`
+      );
+    }
+
     // recid must be parseable as a number
     if (isNaN(runWithSessionSigs.recid)) {
       throw new Error(`Expected "recid" to be parseable as a number`);
diff --git a/local-tests/tests/testUseEoaSessionSigsToPkpSign.ts b/local-tests/tests/testUseEoaSessionSigsToPkpSign.ts
index 1b217f3e5..56566bdd9 100644
--- a/local-tests/tests/testUseEoaSessionSigsToPkpSign.ts
+++ b/local-tests/tests/testUseEoaSessionSigsToPkpSign.ts
@@ -1,3 +1,5 @@
+import { ethers } from 'ethers';
+
 import { log } from '@lit-protocol/misc';
 import { getEoaSessionSigs } from 'local-tests/setup/session-sigs/get-eoa-session-sigs';
 import { TinnyEnvironment } from 'local-tests/setup/tinny-environment';
@@ -58,5 +60,25 @@ export const testUseEoaSessionSigsToPkpSign = async (
     throw new Error(`Expected "recid" to be parseable as a number`);
   }
 
+  const signature = ethers.utils.joinSignature({
+    r: '0x' + runWithSessionSigs.r,
+    s: '0x' + runWithSessionSigs.s,
+    recoveryParam: runWithSessionSigs.recid,
+  });
+  const recoveredPubKey = ethers.utils.recoverPublicKey(
+    alice.loveLetter,
+    signature
+  );
+  if (recoveredPubKey !== `0x${runWithSessionSigs.publicKey.toLowerCase()}`) {
+    throw new Error(
+      `Expected recovered public key to match runWithSessionSigs.publicKey`
+    );
+  }
+  if (recoveredPubKey !== `0x${alice.pkp.publicKey.toLowerCase()}`) {
+    throw new Error(
+      `Expected recovered public key to match alice.pkp.publicKey`
+    );
+  }
+
   log('✅ testUseEoaSessionSigsToPkpSign');
 };
diff --git a/local-tests/tests/testUsePkpSessionSigsToPkpSign.ts b/local-tests/tests/testUsePkpSessionSigsToPkpSign.ts
index 27986b20f..0dc62eed7 100644
--- a/local-tests/tests/testUsePkpSessionSigsToPkpSign.ts
+++ b/local-tests/tests/testUsePkpSessionSigsToPkpSign.ts
@@ -1,3 +1,5 @@
+import { ethers } from 'ethers';
+
 import { log } from '@lit-protocol/misc';
 import { getPkpSessionSigs } from 'local-tests/setup/session-sigs/get-pkp-session-sigs';
 import { TinnyEnvironment } from 'local-tests/setup/tinny-environment';
@@ -58,5 +60,25 @@ export const testUsePkpSessionSigsToPkpSign = async (
     throw new Error(`Expected "recid" to be parseable as a number`);
   }
 
+  const signature = ethers.utils.joinSignature({
+    r: '0x' + res.r,
+    s: '0x' + res.s,
+    recoveryParam: res.recid,
+  });
+  const recoveredPubKey = ethers.utils.recoverPublicKey(
+    alice.loveLetter,
+    signature
+  );
+  if (recoveredPubKey !== `0x${res.publicKey.toLowerCase()}`) {
+    throw new Error(`Expected recovered public key to match res.publicKey`);
+  }
+  if (
+    recoveredPubKey !== `0x${alice.authMethodOwnedPkp.publicKey.toLowerCase()}`
+  ) {
+    throw new Error(
+      `Expected recovered public key to match alice.authMethodOwnedPkp.publicKey`
+    );
+  }
+
   log('✅ res:', res);
 };
diff --git a/local-tests/tests/testUseValidLitActionCodeGeneratedSessionSigsToPkpSign.ts b/local-tests/tests/testUseValidLitActionCodeGeneratedSessionSigsToPkpSign.ts
index 9ae59420e..966736aa8 100644
--- a/local-tests/tests/testUseValidLitActionCodeGeneratedSessionSigsToPkpSign.ts
+++ b/local-tests/tests/testUseValidLitActionCodeGeneratedSessionSigsToPkpSign.ts
@@ -1,3 +1,5 @@
+import { ethers } from 'ethers';
+
 import { log } from '@lit-protocol/misc';
 import { LIT_NETWORK } from '@lit-protocol/constants';
 import { getLitActionSessionSigs } from 'local-tests/setup/session-sigs/get-lit-action-session-sigs';
@@ -58,5 +60,25 @@ export const testUseValidLitActionCodeGeneratedSessionSigsToPkpSign = async (
     throw new Error(`Expected "recid" to be parseable as a number`);
   }
 
+  const signature = ethers.utils.joinSignature({
+    r: '0x' + res.r,
+    s: '0x' + res.s,
+    recoveryParam: res.recid,
+  });
+  const recoveredPubKey = ethers.utils.recoverPublicKey(
+    alice.loveLetter,
+    signature
+  );
+  if (recoveredPubKey !== `0x${res.publicKey.toLowerCase()}`) {
+    throw new Error(`Expected recovered public key to match res.publicKey`);
+  }
+  if (
+    recoveredPubKey !== `0x${alice.authMethodOwnedPkp.publicKey.toLowerCase()}`
+  ) {
+    throw new Error(
+      `Expected recovered public key to match alice.authMethodOwnedPkp.publicKey`
+    );
+  }
+
   log('✅ res:', res);
 };
diff --git a/local-tests/tests/testUseValidLitActionIpfsCodeGeneratedSessionSigsToPkpSign.ts b/local-tests/tests/testUseValidLitActionIpfsCodeGeneratedSessionSigsToPkpSign.ts
index ab59dd5f0..779bf6930 100644
--- a/local-tests/tests/testUseValidLitActionIpfsCodeGeneratedSessionSigsToPkpSign.ts
+++ b/local-tests/tests/testUseValidLitActionIpfsCodeGeneratedSessionSigsToPkpSign.ts
@@ -1,3 +1,5 @@
+import { ethers } from 'ethers';
+
 import { log } from '@lit-protocol/misc';
 import { getLitActionSessionSigsUsingIpfsId } from 'local-tests/setup/session-sigs/get-lit-action-session-sigs';
 import { TinnyEnvironment } from 'local-tests/setup/tinny-environment';
@@ -66,5 +68,26 @@ export const testUseValidLitActionIpfsCodeGeneratedSessionSigsToPkpSign =
       throw new Error(`Expected "recid" to be parseable as a number`);
     }
 
+    const signature = ethers.utils.joinSignature({
+      r: '0x' + res.r,
+      s: '0x' + res.s,
+      recoveryParam: res.recid,
+    });
+    const recoveredPubKey = ethers.utils.recoverPublicKey(
+      alice.loveLetter,
+      signature
+    );
+    if (recoveredPubKey !== `0x${res.publicKey.toLowerCase()}`) {
+      throw new Error(`Expected recovered public key to match res.publicKey`);
+    }
+    if (
+      recoveredPubKey !==
+      `0x${alice.authMethodOwnedPkp.publicKey.toLowerCase()}`
+    ) {
+      throw new Error(
+        `Expected recovered public key to match alice.authMethodOwnedPkp.publicKey`
+      );
+    }
+
     log('✅ res:', res);
   };