diff --git a/blockchain/MNDContract.ts b/blockchain/MNDContract.ts
index 9570c06..d8c5d5c 100644
--- a/blockchain/MNDContract.ts
+++ b/blockchain/MNDContract.ts
@@ -788,14 +788,19 @@ export const MNDContractAbi = [
                         type: 'address',
                     },
                     {
-                        internalType: 'uint256[]',
-                        name: 'epochs',
-                        type: 'uint256[]',
+                        internalType: 'uint256',
+                        name: 'fromEpoch',
+                        type: 'uint256',
                     },
                     {
-                        internalType: 'uint8[]',
-                        name: 'availabilies',
-                        type: 'uint8[]',
+                        internalType: 'uint256',
+                        name: 'toEpoch',
+                        type: 'uint256',
+                    },
+                    {
+                        internalType: 'bytes',
+                        name: 'packedAvailabilities',
+                        type: 'bytes',
                     },
                 ],
                 internalType: 'struct ComputeRewardsParams[]',
@@ -851,14 +856,19 @@ export const MNDContractAbi = [
                         type: 'address',
                     },
                     {
-                        internalType: 'uint256[]',
-                        name: 'epochs',
-                        type: 'uint256[]',
+                        internalType: 'uint256',
+                        name: 'fromEpoch',
+                        type: 'uint256',
+                    },
+                    {
+                        internalType: 'uint256',
+                        name: 'toEpoch',
+                        type: 'uint256',
                     },
                     {
-                        internalType: 'uint8[]',
-                        name: 'availabilies',
-                        type: 'uint8[]',
+                        internalType: 'bytes',
+                        name: 'packedAvailabilities',
+                        type: 'bytes',
                     },
                 ],
                 internalType: 'struct ComputeRewardsParams[]',
@@ -1738,14 +1748,19 @@ export const MNDContractAbi = [
                         type: 'address',
                     },
                     {
-                        internalType: 'uint256[]',
-                        name: 'epochs',
-                        type: 'uint256[]',
+                        internalType: 'uint256',
+                        name: 'fromEpoch',
+                        type: 'uint256',
+                    },
+                    {
+                        internalType: 'uint256',
+                        name: 'toEpoch',
+                        type: 'uint256',
                     },
                     {
-                        internalType: 'uint8[]',
-                        name: 'availabilies',
-                        type: 'uint8[]',
+                        internalType: 'bytes',
+                        name: 'packedAvailabilities',
+                        type: 'bytes',
                     },
                 ],
                 internalType: 'struct ComputeRewardsParams',
diff --git a/lib/api/blockchain.ts b/lib/api/blockchain.ts
index cf096af..d101ab5 100644
--- a/lib/api/blockchain.ts
+++ b/lib/api/blockchain.ts
@@ -607,13 +607,24 @@ const getMndOrGndLicenseRewardsBreakdown = async (
         epochs_vals = epochs_vals.slice(start);
     }
 
-    if (epochsToClaim !== epochs.length || epochsToClaim !== epochs_vals.length) {
+    const epochsAreContiguous = epochs.every((epoch, index) => epoch === firstEpochToClaim + index);
+
+    if (
+        epochsToClaim !== epochs.length ||
+        epochsToClaim !== epochs_vals.length ||
+        !epochsAreContiguous ||
+        epochs[0] !== firstEpochToClaim ||
+        epochs[epochs.length - 1] !== currentEpoch - 1
+    ) {
         return {
             claimableAmount: undefined,
         };
     }
 
     const publicClient = await getPublicClient();
+    const packedAvailabilities = `0x${epochs_vals
+        .map((availability) => availability.toString(16).padStart(2, '0'))
+        .join('')}` as `0x${string}`;
 
     let result: ReadContractReturnType<typeof MNDContractAbi, 'calculateRewards'> | undefined;
 
@@ -627,8 +638,9 @@ const getMndOrGndLicenseRewardsBreakdown = async (
                     {
                         licenseId,
                         nodeAddress: license.nodeAddress,
-                        epochs: epochs.map((epoch) => BigInt(epoch)),
-                        availabilies: epochs_vals,
+                        fromEpoch: BigInt(firstEpochToClaim),
+                        toEpoch: BigInt(currentEpoch - 1),
+                        packedAvailabilities,
                     },
                 ],
             ],
diff --git a/typedefs/blockchain.ts b/typedefs/blockchain.ts
index d871157..56af800 100644
--- a/typedefs/blockchain.ts
+++ b/typedefs/blockchain.ts
@@ -52,8 +52,9 @@ type CachedLicense = {
 type ComputeParam = {
     licenseId: bigint;
     nodeAddress: `0x${string}`;
-    epochs: bigint[];
-    availabilies: number[];
+    fromEpoch: bigint;
+    toEpoch: bigint;
+    packedAvailabilities: `0x${string}`;
 };
 
 type OraclesAvailabilityResult = {