Cardma makes it easy to send and receive e-cards and ETH gifts on blockchain.
Each artist designed e-card sent are in the form of ERC-721 tokens.
Combined with the personal messages written on the cards, each card is truly unique and means a lot to its owner.
When you create a card on Cardma, an ERC-721 token, as well as the gift amount, is stored on Cardma contract.
The receiver then uses the corresponding private key to claim the card and gift from the contract.
This means that the receiver does not have to have a wallet before receiving the gift and the sender does not have to get the receiver's address beforehand.
Such mechanism brings back the element of surprise to gift-sending on blockchain!