feat(sepolia): set the Jovian parameters on Base Sepolia

Makefile

@@ -119,7 +119,7 @@ checkout-base-contracts-commit:
 ##
 # Task Signer Tool
 ##
-SIGNER_TOOL_COMMIT=dbe7f9e358bf99e367441e95d8f6ce28716c4cc9
+SIGNER_TOOL_COMMIT=abbfa09210582eca32ad4873d862994a5957fbc2
 SIGNER_TOOL_PATH=signer-tool
 
 .PHONY: checkout-signer-tool

sepolia/2025-11-18-set-jovian-parameters/.env

@@ -0,0 +1,19 @@
+# Base Contracts commit
+BASE_CONTRACTS_COMMIT=51788f920e368e72c63cef24a5e1ea0f6562d9a5
+
+# Optimism commit  (op-contracts/v5.0.0)
+OP_COMMIT=d09c836f818c73ae139f60b717654c4e53712743
+
+# Contract addresses
+SYSTEM_CONFIG=0xf272670eb55e895584501d564AfEB048bEd26194
+OWNER_SAFE=0x0fe884546476dDd290eC46318785046ef68a0BA9
+CB_SIGNER_SAFE_ADDR=0x646132A1667ca7aD00d36616AFBA1A28116C770A
+CB_NESTED_SAFE_ADDR=0x5dfEB066334B67355A15dc9b67317fD2a2e1f77f
+CB_SC_SAFE_ADDR=0x6AF0674791925f767060Dd52f7fB20984E8639d8
+OP_SIGNER_SAFE_ADDR=0x6AF0674791925f767060Dd52f7fB20984E8639d8
+
+# Jovian parameters
+DA_FOOTPRINT_GAS_SCALAR=312
+MIN_BASE_FEE=200000
+
+RECORD_STATE_DIFF=true

sepolia/2025-11-18-set-jovian-parameters/FACILITATORS.md

@@ -0,0 +1,47 @@
+#### Execute the transaction
+
+1. Collect outputs from all participating signers.
+1. Concatenate all signatures and export it as the `SIGNATURES`
+   environment variable, i.e. `export
+SIGNATURES="[SIGNATURE1][SIGNATURE2]..."`.
+1. Run the `make execute` or `make approve` command as described below to execute the transaction.
+
+For example, if the quorum is 3 and you get the following outputs:
+
+```shell
+Data:  0xDEADBEEF
+Signer: 0xC0FFEE01
+Signature: AAAA
+```
+
+```shell
+Data:  0xDEADBEEF
+Signer: 0xC0FFEE02
+Signature: BBBB
+```
+
+```shell
+Data:  0xDEADBEEF
+Signer: 0xC0FFEE03
+Signature: CCCC
+```
+
+Coinbase facilitator:
+
+```bash
+SIGNATURES=AAAABBBBCCCC make approve-cb
+```
+
+```bash
+SIGNATURES=AAAABBBBCCCC make approve-cb-sc
+```
+
+```bash
+SIGNATURES=AAAABBBBCCCC make approve-op
+```
+
+Once the signatures have been submitted approving the transaction for all nested Safes run:
+
+```bash
+make execute
+```

sepolia/2025-11-18-set-jovian-parameters/Makefile

@@ -0,0 +1,83 @@
+include ../../Makefile
+include ../../Multisig.mk
+
+include ../.env
+include .env
+
+ifndef LEDGER_ACCOUNT
+override LEDGER_ACCOUNT = 1
+endif
+
+# Sepolia Commands
+
+# OWNER_SAFE/
+# ├── CB_SIGNER_SAFE_ADDR/
+# │   ├── CB_NESTED_SAFE_ADDR/
+# │   │   └── Signers
+# │   └── CB_SC_SAFE_ADDR/
+# │       └── Signers
+# └── OP_SIGNER_SAFE_ADDR/
+#     └── Signers
+
+RPC_URL = $(L1_RPC_URL)
+SCRIPT_NAME = SetJovianParametersScript
+
+.PHONY: gen-validation-cb
+gen-validation-cb: checkout-signer-tool run-script-cb
+
+.PHONY: run-script-cb
+run-script-cb:
+	cd $(SIGNER_TOOL_PATH); \
+	npm ci; \
+	bun run scripts/genValidationFile.ts --rpc-url $(RPC_URL) \
+	--ledger-id $(LEDGER_ACCOUNT) \
+	--workdir .. --forge-cmd 'forge script --rpc-url $(RPC_URL) \
+	$(SCRIPT_NAME) --sig "sign(address[])" "[$(CB_NESTED_SAFE_ADDR), $(CB_SIGNER_SAFE_ADDR)]" --sender 0x7f10098bd53519c739ca8a404afe127647d94774' --out ../validations/cb-signer.json;
+
+
+.PHONY: gen-validation-cb-sc
+gen-validation-cb-sc: checkout-signer-tool run-script-cb-sc
+
+.PHONY: run-script-cb-sc
+run-script-cb-sc:
+	cd $(SIGNER_TOOL_PATH); \
+	npm ci; \
+	bun run scripts/genValidationFile.ts --rpc-url $(RPC_URL) \
+	--ledger-id $(LEDGER_ACCOUNT) \
+	--workdir .. --forge-cmd 'forge script --rpc-url $(RPC_URL) \
+	$(SCRIPT_NAME) --sig "sign(address[])" "[$(CB_SC_SAFE_ADDR), $(CB_SIGNER_SAFE_ADDR)]" --sender 0x7f10098bd53519c739ca8a404afe127647d94774' --out ../validations/cb-sc-signer.json;
+
+.PHONY: gen-validation-op
+gen-validation-op: checkout-signer-tool run-script-op
+
+.PHONY: run-script-op
+run-script-op:
+	cd $(SIGNER_TOOL_PATH); \
+	npm ci; \
+	bun run scripts/genValidationFile.ts --rpc-url $(RPC_URL) \
+	--ledger-id $(LEDGER_ACCOUNT) \
+	--workdir .. --forge-cmd 'forge script --rpc-url $(RPC_URL) \
+	$(SCRIPT_NAME) --sig "sign(address[])" "[$(OP_SIGNER_SAFE_ADDR)]" --sender 0x0CF2F86C3338993ce10F74d6f4B095712c7efe26' --out ../validations/op-signer.json;
+
+
+# CB
+.PHONY: approve-cb
+approve-cb:
+	$(call MULTISIG_APPROVE,$(CB_NESTED_SAFE_ADDR) $(CB_SIGNER_SAFE_ADDR),$(SIGNATURES))
+
+.PHONY: approve-cb-sc
+approve-cb-sc:
+	$(call MULTISIG_APPROVE,$(CB_SC_SAFE_ADDR) $(CB_SIGNER_SAFE_ADDR),$(SIGNATURES))
+
+.PHONY: approve-cb-coordinator
+approve-cb-coordinator:
+	$(call MULTISIG_APPROVE,$(CB_SIGNER_SAFE_ADDR),0x)
+
+.PHONY: approve-op
+approve-op:
+	$(call MULTISIG_APPROVE,$(OP_SIGNER_SAFE_ADDR),$(SIGNATURES))
+
+# Execute
+.PHONY: execute
+execute:
+	$(call MULTISIG_EXECUTE,0x)

sepolia/2025-11-18-set-jovian-parameters/README.md

@@ -0,0 +1,58 @@
+# Set Jovian Parameters on Base Sepolia
+
+Status: READY TO SIGN
+
+## Description
+
+This task sets the Jovian hardfork parameters on Base Sepolia's SystemConfig contract. The parameters being set are:
+
+- `setDAFootprintGasScalar(312)` - Sets the data availability footprint gas scalar
+- `setMinBaseFee(200000)` - Sets the minimum base fee
+
+These parameters activate with the Jovian hardfork and affect data availability fee calculations and base fee management on the L2.
+
+## Procedure
+
+## Install dependencies
+
+### 1. Update foundry
+
+```bash
+foundryup
+```
+
+### 2. Install Node.js if needed
+
+First, check if you have node installed
+
+```bash
+node --version
+```
+
+If you see a version output from the above command, you can move on. Otherwise, install node
+
+```bash
+brew install node
+```
+
+## Approving the Update transaction
+
+### 1. Update repo:
+
+```bash
+cd contract-deployments
+git pull
+```
+
+### 2. Run the signing tool (NOTE: do not enter the task directory. Run this command from the project's root).
+
+```bash
+make sign-task
+```
+
+### 3. Open the UI at [http://localhost:3000](http://localhost:3000)
+
+Be sure to select the correct task user from the list of available users to sign.
+After completion, the signer tool can be closed by using Ctrl + c
+
+### 4. Send signature to facilitator

sepolia/2025-11-18-set-jovian-parameters/foundry.toml

@@ -0,0 +1,21 @@
+[profile.default]
+src = 'src'
+out = 'out'
+libs = ['lib']
+broadcast = 'records'
+fs_permissions = [{ access = "read-write", path = "./" }]
+optimizer = true
+optimizer_runs = 999999
+solc_version = "0.8.15"
+via-ir = false
+remappings = [
+    '@eth-optimism-bedrock/=lib/optimism/packages/contracts-bedrock/',
+    '@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts',
+    '@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts',
+    '@rari-capital/solmate/=lib/solmate/',
+    '@base-contracts/=lib/base-contracts',
+    'solady/=lib/solady/src/',
+]
+evm_version = "prague"
+
+# See more config options https://github.com/foundry-rs/foundry/tree/master/config

sepolia/2025-11-18-set-jovian-parameters/script/SetJovianParameters.s.sol

@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.15;
+
+import {Vm} from "forge-std/Vm.sol";
+import {console} from "forge-std/console.sol";
+import {Simulation} from "@base-contracts/script/universal/Simulation.sol";
+import {IMulticall3} from "forge-std/interfaces/IMulticall3.sol";
+
+import {MultisigScript} from "@base-contracts/script/universal/MultisigScript.sol";
+
+interface ISystemConfig {
+    function daFootprintGasScalar() external view returns (uint16);
+    function minBaseFee() external view returns (uint64);
+    function setDAFootprintGasScalar(uint16 _daFootprintGasScalar) external;
+    function setMinBaseFee(uint64 _minBaseFee) external;
+}
+
+contract SetJovianParametersScript is MultisigScript {
+    address internal immutable OWNER_SAFE;
+    address internal immutable SYSTEM_CONFIG;
+
+    uint16 internal immutable DA_FOOTPRINT_GAS_SCALAR;
+    uint64 internal immutable MIN_BASE_FEE;
+
+    constructor() {
+        OWNER_SAFE = vm.envAddress("OWNER_SAFE");
+        SYSTEM_CONFIG = vm.envAddress("SYSTEM_CONFIG");
+        DA_FOOTPRINT_GAS_SCALAR = uint16(vm.envUint("DA_FOOTPRINT_GAS_SCALAR"));
+        MIN_BASE_FEE = uint64(vm.envUint("MIN_BASE_FEE"));
+    }
+
+    function setUp() external view {
+        // Log current values for reference
+        console.log("Current DA Footprint Gas Scalar:", ISystemConfig(SYSTEM_CONFIG).daFootprintGasScalar());
+        console.log("Current Min Base Fee:", ISystemConfig(SYSTEM_CONFIG).minBaseFee());
+        console.log("New DA Footprint Gas Scalar:", DA_FOOTPRINT_GAS_SCALAR);
+        console.log("New Min Base Fee:", MIN_BASE_FEE);
+    }
+
+    function _postCheck(Vm.AccountAccess[] memory, Simulation.Payload memory) internal view override {
+        vm.assertEq(
+            ISystemConfig(SYSTEM_CONFIG).daFootprintGasScalar(),
+            DA_FOOTPRINT_GAS_SCALAR,
+            "DA Footprint Gas Scalar mismatch"
+        );
+        vm.assertEq(ISystemConfig(SYSTEM_CONFIG).minBaseFee(), MIN_BASE_FEE, "Min Base Fee mismatch");
+    }
+
+    function _buildCalls() internal view override returns (IMulticall3.Call3Value[] memory) {
+        IMulticall3.Call3Value[] memory calls = new IMulticall3.Call3Value[](2);
+
+        calls[0] = IMulticall3.Call3Value({
+            target: SYSTEM_CONFIG,
+            allowFailure: false,
+            callData: abi.encodeCall(ISystemConfig.setDAFootprintGasScalar, (DA_FOOTPRINT_GAS_SCALAR)),
+            value: 0
+        });
+
+        calls[1] = IMulticall3.Call3Value({
+            target: SYSTEM_CONFIG,
+            allowFailure: false,
+            callData: abi.encodeCall(ISystemConfig.setMinBaseFee, (MIN_BASE_FEE)),
+            value: 0
+        });
+
+        return calls;
+    }
+
+    function _ownerSafe() internal view override returns (address) {
+        return OWNER_SAFE;
+    }
+}