Deploy SVRN Chain

Chain parameters, predeploy addresses, deployment scripts, and OP Stack configuration for the SVRN L2.

Chain Parameters

Parameter	Value
Chain ID	741741
Block Time	2 seconds
Gas Limit	30,000,000 (30M)
Base Fee	1 gwei UCU
EIP-1559 Denominator	250 (Canyon)
EIP-1559 Elasticity	6
Finalization Period	7 days (604,800s)

Predeploy Addresses

Address	Contract
0x4200000000000000000000000000000000000100	UCUToken
0x4200000000000000000000000000000000000101	OneWayBridge
0x4200000000000000000000000000000000000102	ComputeBasketOracle
0x4200000000000000000000000000000000000103	CitizenRegistry
0x4200000000000000000000000000000000000104	SovereigntyIndex
0x4200000000000000000000000000000000000105	QuadraticVoting
0x4200000000000000000000000000000000000106	ConvictionWeighting
0x4200000000000000000000000000000000000107	ConstitutionalGuard
0x4200000000000000000000000000000000000108	Governor

SVRN predeploys occupy 0x4200...0100 through 0x4200...0108, above the standard OP Stack predeploy range.

Deployment

Local Deployment (Anvil)

Spin up a local Anvil fork and deploy all SVRN contracts with a single command.

# Start local chain
anvil &

# Deploy all contracts
forge script script/DeployLocal.s.sol:DeployLocal \
  --rpc-url http://127.0.0.1:8545 \
  --broadcast

Testnet Deployment (Sepolia)

Set environment variables and deploy to Sepolia testnet. The deployer account needs SepoliaETH for gas.

# Set environment variables
export DEPLOYER_PRIVATE_KEY="0x..."
export SEPOLIA_RPC_URL="https://sepolia.infura.io/v3/YOUR_KEY"
export ETHERSCAN_API_KEY="YOUR_KEY"

# Deploy to Sepolia with verification
forge script script/DeployTestnet.s.sol:DeployTestnet \
  --rpc-url $SEPOLIA_RPC_URL \
  --private-key $DEPLOYER_PRIVATE_KEY \
  --broadcast \
  --verify

Wright's Law Projections

Timeline	Cost per CU	Note
Year 0	$0.50 / CU	Launch baseline
Year 3	$0.25 / CU	50% reduction
Year 6	$0.12 / CU	76% reduction from launch

Projections based on Wright's Law applied to compute costs. As cumulative compute production doubles, the cost per unit decreases by a fixed percentage. The UCU basket price automatically reflects these reductions through oracle updates.

OP Stack Notes

Sequencer Setup

SVRN runs a centralized sequencer at launch. The sequencer signs blocks with a dedicated P2P key and submits batches via the batch sender address. Decentralized sequencing is planned post-launch.

UCU as Native Gas

SVRN replaces ETH with UCU as the native gas token. This requires a forked op-geth binary that denominates all gas fees in UCU instead of ETH. The EIP-1559 parameters are tuned for compute workload predictability.

L2ToL1MessagePasser Disabled

The standard OP Stack L2ToL1MessagePasser at 0x4200...0016 is replaced with a contract that reverts unconditionally on initiateWithdrawal(). The L2StandardBridge operates in deposit-relay-only mode.

Upgrade Schedule

All OP Stack upgrades through Holocene are active from genesis (time offset 0x0). Isthmus and Jovian are omitted and will be enabled when SVRN is ready for those features.