According to official sources, the BTC Layer2 project UniPort will airdrop a total of 210 million UP tokens to holders of engraved assets in the Bitcoin, EVM, and Lightning Network ecosystems. The "Happy Mark" airdrop carnival is divided into three rounds: The first round will airdrop users holding three types of assets: STAS/RATS (BRC20), ATOM/QUARK/SOPHON (ARC20), STAMP (SRC20). The second round will airdrop users holding four types of EVM ecosystem engraved assets: AVAV, POLS, ALLY, and ETHS. The third round will airdrop users holding Lightning Network/RGB ecosystem engraved assets: TREAT, TRICK, and RGBS.