RSK Addresses incorporate an optional blockchain identifier (also known as chain-id). If the chain-id is not present, it is assumed the address refers to the RSK main network.
RSK implements EIP-1191 to protect users from losing funds by mixing addresses of different Ethereum based networks.
In this document, you can find out how to apply the checksum and validate an address. This EIP is also supported by web3 and hardware wallets.
To avoid a replay attack by using an already-signed Tx, broadcasted in “network A”, replaying it in “network B”, the EVM-based networks use as part of the transaction properties the “chainId”. All chain IDs can be found here: https://chainid.network/
RSK Mainnet: 30 RSK Testnet: 31
See EIP-155 for more information.
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