Deployments

Mainnet deployment of the fast-fill contracts with canonical-recipient validation, callbackGasLimit capped at 5,000,000, transient reentrancy guards, bounded hook returndata copying, deterministic per-OFT adapter isolation, and the executor-enabled CCTP mint-relay path.

Deployed to Base, Optimism, and Arbitrum. Ethereum L1 is supported by the registry constants but is intentionally not part of this deployment set.

Prototype. Deployed for demonstration and testing.

Addresses

All contracts below are CREATE2-deterministic from deployer/owner 0xA06Bf163BC51A457D99C6283e78897727c4fDdF2 with maxFeeRate = 5e15 (0.5%, WAD).

Notes:

• New CCTP orders should use the executor-enabled adapter. The pre-executor CCTP adapter remains listed as the historical live-demo address and cannot route mintFee > 0 orders.
• USDt0 is not configured on Base in FastFillConfig; the USDt0 adapter address is deployed there for cross-chain determinism but USDt0 operations on Base revert as unsupported.
• A deployed OFT adapter means the token has an adapter address, not that every chain pair is peer-enabled by the token issuer's live OFT. A USDe Arbitrum -> Base smoke was simulated and the live USDe OFT reverted with NoPeer(30184); Arbitrum/Base USDe peers are currently zero.
• USDtb (oftId = 4) is present in the registry but was not deployed by the current factory script.
• The counterpart adapter for each bridge/token is the same address on every deployed chain.

Demo Hooks (destination-execution callbacks)

Demonstration hooks that receive the onFastFill callback (src/interfaces/IFastFillReceiver.sol): the adapter delivers the bridged token to the hook and, in the same atomic frame, the hook acts on it. Every hook leans on the protocol's revert-to-redirect rule — if the action reverts, the original funds are sent to the user (RedirectFunds(user)), so a failed action degrades to a plain transfer, never a stuck balance. Full design + usage in docs/HOOKS.md.

Deployed to Base, Optimism, and Arbitrum from deployer 0xA06Bf163BC51A457D99C6283e78897727c4fDdF2, CREATE2-deterministic. Each hook embeds its protocol dependency (router/pool) as an immutable, so the address is shared across chains that share the dependency (Optimism + Arbitrum) and differs on Base.

Dependencies (script/config/Addresses.sol): Uniswap V3 SwapRouter02 — Base 0x2626…1e481, OP/ARB 0x68b3…65Fc45; Aave V3 Pool — Base 0xA238…D1c5, OP/ARB 0x794a…814aD. Post-deploy checks confirmed UniswapSwapHook.router() and AaveDepositHook.pool() resolve to these on every chain.

IntentExecutorHook is not deployed — it is implemented, selector-verified, and unit-tested, but deferred pending (a) a deployed IntentExecutor address per chain and (b) end-to-end validation against the real module. Rationale + completion checklist in docs/HOOKS.md.

Demo Hook deploy transactions

Deploy command: forge script script/DeployHooks.s.sol --rpc-url $RPC --broadcast --private-key $KEY --slow. The script reads router/pool/executor from Addresses.sol by chain id and skips any hook whose dependency is unset (why IntentExecutorHook is skipped everywhere today).

All six are source-verified on the explorers (Etherscan V2 unified API):

Re-verify (if ever needed) with forge verify-contract <addr> src/hooks/<Hook>.sol:<Hook> --chain-id <id> --constructor-args $(cast abi-encode 'constructor(address)' <dep>) --etherscan-api-key $ETHERSCAN_API_KEY --watch.

Deploy Transactions

FastFillConfig

CctpExecutor

CctpAdapter (executor-enabled)

CctpAdapter (pre-executor historical)

OftAdapterFactory

OFT Adapters

Post-Deploy Checks

Confirmed on Base, Optimism, and Arbitrum:

• CctpExecutor.config() == 0xaec766479DB174110958Bc45D141A2C5eF693DF5
• CctpExecutor.owner() == 0xA06Bf163BC51A457D99C6283e78897727c4fDdF2
• CctpAdapter.config() == 0xaec766479DB174110958Bc45D141A2C5eF693DF5
• CctpAdapter.owner() == 0xA06Bf163BC51A457D99C6283e78897727c4fDdF2
• CctpAdapter.cctpExecutor() == 0xAFc7bBc0B5fD7A4d9b936349cfE991e5bC6E2a80
• CctpAdapter.maxFeeRate() == 5e15
• OftAdapterFactory.config() == 0xaec766479DB174110958Bc45D141A2C5eF693DF5
• OftAdapterFactory.adapterOwner() == 0xA06Bf163BC51A457D99C6283e78897727c4fDdF2
• OftAdapterFactory.maxFeeRate() == 5e15
• Each deployed OFT adapter reports the expected oftId, config, and owner.

Smoke Tests

• CCTP direct, Base -> Arbitrum (mintFee = 0, unfilled):
  • Source tx: 0x4c6b282cde6fc03bcc0c3bc75b40a601aaadf232e789db0643039052a7b790bc
  • Wrong-path simulation: CctpExecutor.execute rejected the direct message.
  • Settle tx: 0x95d72996f8f5474981a2fabfed5aac7bccfb11195ee9970aa1caadffceb9ad19
  • Order: 0x9b93f80ce5a6990acc8a9a329cde61e33285ed03b99470091462c9327f40908a
  • Result: 0.100000 USDC burned on Base; 0.099987 USDC arrived on Arbitrum; order settled.
• CCTP executor-routed, Arbitrum -> Base (mintFee = 0.001000, unfilled):
  • Source tx: 0x83eef9a71fae6f0057ae954cc9c22221866c469f97deef8c9b398c733aa98504
  • Wrong-path simulation: CctpAdapter.settle rejected the routed message.
  • Execute tx: 0x81b9cfa6aeaa24e57c9b25ed7c03c39e0ea9852879f7c69d5196ef14fcb671e2
  • Order: 0xee24278341b60dcd3d1430eaff1b293ad88a218abb060ea0c2790d472c2f84cc
  • Result: executor paid 0.001000 USDC mintFee, forwarded 0.098987 USDC to the adapter, and the unfilled order settled to the recipient.
• CCTP executor-routed, Optimism -> Arbitrum (mintFee = 0.001000, optimistically filled):
  • Source tx: 0xfcfeab2af6b378d9d1c7a6029b1991ab4dacacabf7a92764950b5a6c97f4458c
  • Fill tx: 0xede6dbae675bed038491755e6c7cf9460d3394dc73315e2adbcb1b078a283a49
  • Wrong-path simulation: CctpAdapter.settle rejected the routed message.
  • Execute tx: 0x0c83bc09d8d24393d5a24acfde0e9aff8f51aedc3082c100c37cb19c6e663405
  • Order: 0x84970e8f5b6e9b9c1108d237638e04045e40598debdc092e76829d2a41138070
  • Result: fill paid 0.088000 USDC to the recipient with a 0.001000 USDC filler fee; executor paid 0.001000 USDC mintFee, forwarded 0.098987 USDC, reimbursed the filler 0.089000 USDC, and sent 0.009987 USDC surplus to the recipient.
• USDC CCTP Base -> Arbitrum:
  • Source tx: 0x4267e424c580a7aa197eb428b5c8f9c7978fb532ccb09d73e0679150ac06943a
  • Settle tx: 0xb1950a92b326325fc999b2b598aa256491680b30042cef07aa61981bc844518a
  • Result: 1.000000 USDC burned on Base; 0.999870 USDC delivered on Arbitrum; destination adapter balance returned to zero.
• USDt0 OFT Optimism -> Arbitrum:
  • Source tx: 0xa7f16e39adba31f3f90878d8dafbd39cbee689029d0f9e4cc0cb6c0ffe5582a2
  • LayerZero GUID: 0x1045d986d707c16043e3201192531e5fe388a872c989e211ab5edeb8dba7c4b4
  • Status at submission time: in flight, waiting for the USDT0 pathway's 1000 source confirmations.
• USDe OFT Arbitrum -> Base:
  • Not broadcast. Simulation reverted during quoteSend with NoPeer(30184).
  • Live USDe OFT checks: Arbitrum peers(30184) == 0, Base peers(30110) == 0.

Reproduce

# 1. Config on each target chain.
forge script script/DeployFastFillConfig.s.sol --rpc-url $RPC --broadcast --private-key $KEY

# 2. CCTP executor first. It is a shared singleton for all executor-routed CCTP messages.
CONFIG=0xaec766479DB174110958Bc45D141A2C5eF693DF5 OWNER=0xA06Bf163BC51A457D99C6283e78897727c4fDdF2 \
  forge script script/DeployCctpExecutor.s.sol --rpc-url $RPC --broadcast --private-key $KEY

# 3. CCTP adapter and OFT factory against the deterministic config.
CONFIG=0xaec766479DB174110958Bc45D141A2C5eF693DF5 OWNER=0xA06Bf163BC51A457D99C6283e78897727c4fDdF2 \
  EXECUTOR=0xAFc7bBc0B5fD7A4d9b936349cfE991e5bC6E2a80 \
  forge script script/DeployCctpAdapter.s.sol --rpc-url $RPC --broadcast --private-key $KEY

CONFIG=0xaec766479DB174110958Bc45D141A2C5eF693DF5 OWNER=0xA06Bf163BC51A457D99C6283e78897727c4fDdF2 \
  forge script script/DeployOftAdapterFactory.s.sol --rpc-url $RPC --broadcast --private-key $KEY

# 4. OFT adapters via the factory.
FACTORY=0x84Bb5d3142024da8d61CBEE0A4c722a1650fbFcb \
  forge script script/DeployOftAdapter.s.sol:DeployOftAdapters --rpc-url $RPC --broadcast --private-key $KEY

For the executor-enabled CCTP deployment, post-deploy checks include:

• CctpExecutor.config() == CONFIG
• CctpExecutor.owner() == OWNER
• CctpAdapter.cctpExecutor() == CctpExecutor
• CctpAdapter.config() == CONFIG
• CctpAdapter.owner() == OWNER
• CctpAdapter.maxFeeRate() == 5e15