# Byron genesis file

## Cardano mainnet Byron genesis file:

{% embed url="<https://book.world.dev.cardano.org/environments/mainnet/byron-genesis.json>" %}

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


---

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