🧬Smart Contracts

OffBlocks API is orchestrating a smart contract protocol designed to facilitate card payments while preserving self-custody invariants. In order to facilitate such payments, we have developed two main components:

• Smart Wallet

• Escrow Smart Contract

The following diagram visualises how OffBlocks API orchestrates the payment and how tokens are transferred throughout the payment lifecycle:

OffBlocksEscrow contract is deployed to the following blockchains (testnets only for now):

Chain	Address
Ethereum Sepolia	0x3368F736Ce54d40248E109C65E7a9296B107e574
Arbitrum Sepolia	0x3368F736Ce54d40248E109C65E7a9296B107e574
Polygon Mumbai	0x3368F736Ce54d40248E109C65E7a9296B107e574
zkSync Sepolia	Coming soon

Contracts for OffBlocksSmartWallet and OffBlocksSmartWalletFactory will be added soon