Eg. A user registers a DAS account through https://app.gogodas.com?inviter=dasdeveloper.bit&channel=imtokenreferral.bit. The inviter -
dasdeveloper.bit - will get the promotion bonus, which is 10% of the registration fee. The channel -
imtokenreferral.bit - will get the channel bonus, which is 10% of the registration fee. And the registrar - gogodas.com - will get a premium for a certain amount of ETH converted to CKB. The registrar's exact earnings depend on the premium percentage set by the registrar itself.