Gluwacoin create inter-blockchain network by supporting functions for non-custodial exchange use cases. Instead of trusting a 3rd party to hold Gluwacoins for an exchange, a user can request the 3rd party to lock Gluwacoins at the user’s account instead. The locked Gluwacoins are called a reserve and can only be released to the pre-designated receiver or unlocked back to the sender. Note that the exchange can happen not only between Gluwacoins but also with other cryptocurrencies. To do so, the other cryptocurrency will have to support functions equivalent to the Gluwacoin non-custodial exchange functions. For instance, Bitcoin is compatible with Gluwacoin non-custodial exchange when utilizing a 2-to-3 multi-sig wallet.