Reproducible Builds

Overview

When deploying SP1 Blobstream in production, it's important to ensure that the program used when generating proofs is reproducible.

Prerequisites

You first need to install the cargo prove toolchain.

Ensure that you have the latest version of the toolchain by running:

sp1up

Confirm that you have the toolchain installed by running:

cargo prove --version

Verify the SP1 Blobstream binary

To build the SP1 Blobstream binary, first ensure that Docker is running.

docker ps

Then build the binaries:

cd program

# Builds the SP1 Blobstream binary using the corresponding Docker tag, output directory and ELF name.
cargo prove build --docker --tag v3.0.0 --output-directory ../script --elf-name blobstream-elf

Now, verify the binaries by confirming the output of vkey matches the vkeys on the contract. The vkey program outputs the verification key based on the ELF in /elf.

cargo run --bin vkey --release