diff --git a/packages/aurora-erc20/src/bridged-erc20/sendToEthereum/index.ts b/packages/aurora-erc20/src/bridged-erc20/sendToEthereum/index.ts
index 40235480..ea8af2fa 100644
--- a/packages/aurora-erc20/src/bridged-erc20/sendToEthereum/index.ts
+++ b/packages/aurora-erc20/src/bridged-erc20/sendToEthereum/index.ts
@@ -80,6 +80,7 @@ export interface TransferOptions {
   nearAccount?: Account
   ethClientAddress?: string
   ethClientAbi?: string
+  nearTokenFactoryAccount?: string
 }
 
 const transferDraft: TransferDraft = {
@@ -765,7 +766,7 @@ export async function checkSync (
   if (nearOnEthClientBlockHeight > burnBlockHeight) {
     proof = await findNearProof(
       last(transfer.nearBurnReceiptIds),
-      transfer.sender,
+      options.nearTokenFactoryAccount ?? bridgeParams.nearTokenFactoryAccount,
       nearOnEthClientBlockHeight,
       nearAccount,
       provider,
diff --git a/packages/aurora-ether/src/bridged-ether/sendToEthereum/index.ts b/packages/aurora-ether/src/bridged-ether/sendToEthereum/index.ts
index 17fc3802..5ea8ea34 100644
--- a/packages/aurora-ether/src/bridged-ether/sendToEthereum/index.ts
+++ b/packages/aurora-ether/src/bridged-ether/sendToEthereum/index.ts
@@ -77,6 +77,7 @@ export interface TransferOptions {
   ethClientAddress?: string
   ethClientAbi?: string
   auroraProvider?: ethers.providers.JsonRpcProvider
+  auroraEvmAccount?: string
 }
 
 const transferDraft: TransferDraft = {
@@ -725,7 +726,7 @@ export async function checkSync (
   if (nearOnEthClientBlockHeight > burnBlockHeight) {
     proof = await findNearProof(
       last(transfer.nearBurnReceiptIds),
-      transfer.sender,
+      options.auroraEvmAccount ?? bridgeParams.auroraEvmAccount,
       nearOnEthClientBlockHeight,
       nearAccount,
       provider,
diff --git a/packages/near-ether/src/bridged-ether/sendToEthereum/index.ts b/packages/near-ether/src/bridged-ether/sendToEthereum/index.ts
index b7e4fdb1..73c5ea70 100644
--- a/packages/near-ether/src/bridged-ether/sendToEthereum/index.ts
+++ b/packages/near-ether/src/bridged-ether/sendToEthereum/index.ts
@@ -776,7 +776,7 @@ export async function checkSync (
   if (nearOnEthClientBlockHeight > withdrawBlockHeight) {
     proof = await findNearProof(
       last(transfer.burnReceiptIds),
-      transfer.sender,
+      options.auroraEvmAccount ?? bridgeParams.auroraEvmAccount,
       nearOnEthClientBlockHeight,
       nearAccount,
       provider,
diff --git a/packages/near-ether/src/natural-near/sendToEthereum/index.ts b/packages/near-ether/src/natural-near/sendToEthereum/index.ts
index 67cdc501..6c4ed3b2 100644
--- a/packages/near-ether/src/natural-near/sendToEthereum/index.ts
+++ b/packages/near-ether/src/natural-near/sendToEthereum/index.ts
@@ -761,7 +761,7 @@ export async function checkSync (
   if (nearOnEthClientBlockHeight > lockReceiptBlockHeight) {
     proof = await findNearProof(
       last(transfer.lockReceiptIds),
-      transfer.sender,
+      options.nativeNEARLockerAddress ?? bridgeParams.nativeNEARLockerAddress,
       nearOnEthClientBlockHeight,
       nearAccount,
       provider,
diff --git a/packages/nep141-erc20/src/bridged-nep141/sendToEthereum/index.ts b/packages/nep141-erc20/src/bridged-nep141/sendToEthereum/index.ts
index d2f50445..555806d6 100644
--- a/packages/nep141-erc20/src/bridged-nep141/sendToEthereum/index.ts
+++ b/packages/nep141-erc20/src/bridged-nep141/sendToEthereum/index.ts
@@ -68,6 +68,7 @@ export interface TransferOptions {
   erc20Abi?: string
   nep141Factory?: string
   erc20LockerAbi?: string
+  nearTokenFactoryAccount?: string
 }
 
 class TransferError extends Error {}
@@ -776,7 +777,7 @@ export async function checkSync (
   if (nearOnEthClientBlockHeight > withdrawBlockHeight) {
     proof = await findNearProof(
       last(transfer.withdrawReceiptIds),
-      transfer.sender,
+      options.nearTokenFactoryAccount ?? bridgeParams.nearTokenFactoryAccount,
       nearOnEthClientBlockHeight,
       nearAccount,
       provider,
diff --git a/packages/utils/src/borshify-proof.ts b/packages/utils/src/borshify-proof.ts
index dc59fd71..8bcd4a21 100644
--- a/packages/utils/src/borshify-proof.ts
+++ b/packages/utils/src/borshify-proof.ts
@@ -61,7 +61,15 @@ export function borshifyOutcomeProof (proof: any): Buffer {
 
       statusToBuffer(proof.outcome_proof.outcome.status),
 
-      utils.toBN(0).toBuffer('le', 4),
+      utils.toBN(proof.outcome_root_proof.length).toBuffer('le', 4),
+      Buffer.concat(
+        proof.outcome_root_proof.map((orp: any) =>
+          Buffer.concat([
+            bs58.decode(orp.hash),
+            Buffer.from([orp.direction === 'Right' ? 1 : 0])
+          ])
+        )
+      ),
 
       bs58.decode(proof.block_header_lite.prev_block_hash),
       bs58.decode(proof.block_header_lite.inner_rest_hash),