Byron genesis file

Cardano mainnet Byron genesis file:

https://book.world.dev.cardano.org/environments/mainnet/byron-genesis.jsonbook.world.dev.cardano.org

cardano-cli byron genesis print-genesis-hash --genesis-json mainnet-byron-genesis.json
5f20df933584822601f9e3f8c024eb5eb252fe8cefb24d1317dc3d432e940ebb