On the EOS mainnet, the EOS mainnet’s DSP account must be connected to the new chain’s DSP account. This is done using the addaccount command on the liquidx.dsp account.
owner {name} - DSP account name on the EOS mainnet
chain_account {name} - DSP account name on the new chain
chain_name {name} - account name of contract on the EOS mainnet that registered the chain
On the new chain you must find the account that has deployed the dappservicex.cpp code. This can be found by asking a BP, a member of the community, or by checking the chainentry table on the liquidx.dsp contract and providing the scope of the chain_name used to register in the previous step.
With that you have 2 way mapped your DSP account name. On the EOS Mainnet, the DSP’s account has been linked to the new chain’s network. And on the new network, the EOS Mainnet’s DSP account has been verified.