Is the project of earning money online, which relies on sending one dollar to six people in exchange for listing one's name and later receiving dollars from new subscribers, considered permissible (halal) or forbidden (haram)?

The described scenario for earning, which involves paying six dollars without the participant knowing what money they will receive, is considered a form of gambling. It is neither a sale nor a gift, and it cannot be classified under legitimate contracts. This is due to the lack of clarity regarding the benefit accrued to the participant, other than collecting money without a consideration or with an unknown consideration.