The DotOracle is the first EVM-compatible blockchain with programmable oracles for reading off-chain data from inside of smart contracts. The DotOracle proposes a decentralized network that allows to connect the real world to the Polkadot ecosystem by providing a decentralized oracle service to transfer information from the real world to Polkadot in real time. The network is based on the Practical Byzantine Fault Tolerance (PBFT) protocol to achieve the agreement between DotOracle nodes whenever there is user requests.

The architecture can be applied to any blockchain that can be connected to the DotOracle liquidity network by using the cross-chain bridge.