Bolt builder is a fork of the Flsahbots Builder that implements the functionality of the Constraints API.
The builder has the standard functionality of the Flashbots builder, but with the added functionality of the Constraints API which can be summarized as follows:
- The builder subscribes to the relays for streams of constraints sent by proposers.
- After receiving constraints and validating their authenticity, the builder builds a block that respects all constraints and includes the necessary proofs of inclusion in its bid.
- The builder sends the signed bid as usual to the relay.