In the blockchain space, a cross-chain transaction is the one that provides the facility for two different cryptocurrencies to be transacted in a single system. For instance, one can send Bitcoin Cash and receive another cryptocurrency in return. The Reddit user, hp13, who initiated the BCH-ETC cross-chain experiment also instructed the community to possess an ETC wallet known as Saturn Wallet. Disabling Metamask on the wallet was also part of the instruction.
Secondly, hop13 encouraged the community to donate an amount in Bitcoin Cash to test the performance of the system built by the techie. On sending BCH, the donor was said to receive a token in return after the recipient confirms the donation. The total time set for the whole task to be done was stated to be around 15 minutes.
On top of the cross-chain system, the user also suggested building a reward point system to increase the demand for the BCH payments among the consumers. This is similar to the reward scheme used by credit cards to achieve a rise in consumer demand.