README
¶
op-program
Implements a fault proof program that runs through the rollup state-transition to verify an L2 output from L1 inputs. This verifiable output can then resolve a disputed output on L1.
The program is designed such that it can be run in a deterministic way such that two invocations with the same input data will result in not only the same output, but the same program execution trace. This allows it to be run in an on-chain VM as part of the dispute resolution process.
Compiling
To build op-program, from within the op-program directory run:
make op-program
This resulting executable will be in ./bin/op-program
Testing
To run op-program unit tests, from within the op-program directory run:
make test
Running
From within the op-program directory, options can be reviewed with:
./bin/op-program --help
Generating the Absolute Prestate
The absolute pre-state of the op-program can be generated by executing the makefile
reproducible-prestate target. Effectively, this builds a docker image specified
by Dockerfile.repro pinned with the following dependencies:
- golang version
1.21.3 - alpine
3.18
After running make reproducible-prestate, the following files can be found in
./bin/:
The prestate-proof.json file is what contains the absolute pre-state hash under
the .pre key that is also used by the contracts deploy script.
Directories