add eip 7691 and set the modify the update fraction

Author: g11tech

packages/block/src/header/header.ts

@@ -551,6 +551,7 @@ export class BlockHeader {
     return fakeExponential(
       this.common.param('minBlobGas'),
       excessBlobGas,
+      // the correct blobGasPriceUpdateFraction should be loaded if 7691 is activated
       this.common.param('blobGasPriceUpdateFraction'),
     )
   }

packages/block/src/params.ts

@@ -85,4 +85,11 @@ export const paramsBlock: ParamsDict = {
     // pow
     difficultyBombDelay: 11400000, // the amount of blocks to delay the difficulty bomb with
   },
+  /**
+.  * Blob throughput increase
+.  */
+  7691: {
+    // max blobs and target blobs are relied from the CL after 7742
+    blobGasPriceUpdateFraction: 5007716, // The denominator used in the exponential when calculating a blob gas price
+  },
 }

packages/client/src/miner/pendingBlock.ts

@@ -124,7 +124,9 @@ export class PendingBlock {
     if(vm.common.isActivatedEIP(7742)){
       this.maxBlobsPerBlock = toType(maxBlobsPerBlock!, TypeOutput.Number)
     }else{
-      if (vm.common.isActivatedEIP(4844)) {
+      if(vm.common.isActivatedEIP(7691)){
+        this.maxBlobsPerBlock = vm.common.param('maxBlobsPerBlock')
+      }else if (vm.common.isActivatedEIP(4844)) {
         const blobGasLimit = vm.common.param('maxblobGasPerBlock')
         const blobGasPerBlob = vm.common.param('blobGasPerBlob')
         this.maxBlobsPerBlock = Number(blobGasLimit / blobGasPerBlob)

packages/common/src/eips.ts

@@ -415,6 +415,16 @@ export const eipsDict: EIPsDict = {
     minimumHardfork: Hardfork.Cancun,
     requiredEIPs: [3675],
   },
+  /**
+   * Description : Blob throughput increase
+   * URL         : https://eips.ethereum.org/EIPS/eip-7691
+   * Status      : Review
+   */
+  7691: {
+    minimumHardfork: Hardfork.Prague,
+    // basing this on 7742 because the max blobs and target blobs are relied from CL
+    requiredEIPs: [7742],
+  },
   /**
    * Description : EVM Object Format (EOFv1) Meta
    * URL         : https://github.com/ethereum/EIPs/blob/4153e95befd0264082de3c4c2fe3a85cc74d3152/EIPS/eip-7692.md

packages/common/src/hardforks.ts

@@ -160,7 +160,7 @@ export const hardforksDict: HardforksDict = {
   prague: {
     // TODO update this accordingly to the right devnet setup
     //eips: [663, 3540, 3670, 4200, 4750, 5450, 6206, 7069, 7480, 7620, 7692, 7698], // This is EOF-only
-    eips: [2537, 2935, 6110, 7002, 7251, 7685, 7702, 7742], // This is current prague without EOF
+    eips: [2537, 2935, 6110, 7002, 7251, 7685, 7691, 7702, 7742], // This is current prague without EOF
   },
   /**
    * Description: Next feature hardfork after prague, internally used for verkle testing/implementation (incomplete/experimental)