Bitcore isnt a fork the blockchain is only 400mb not 140gb. You need less than 1btx to get in on the airdrop, the 3% has now ended and the next 4 weeks its 4%. Then 5% for the 4 weeks after that and so it goes untill the unclaimed btx has been distributed. Btx is a great coin with great potential, with an active dev team and great community, go look them up on telegram.