The cardano testnet has a protocol/testnet magic value of 1097911063.

Where do I find this value for the preprod and preview test networks?

1 Answer 1


You can check the byron or shelley genesis files for protocolMagic or networkMagic respectively.

Genesis files for each network can be found here: https://book.world.dev.cardano.org/environments.html

  • 5
    networkMagic from the Shelley genesis files: Preview: 2, Preprod: 1
    – eddex
    Sep 2, 2022 at 16:15

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