Eureka is a decentralized blockchain based on UTXO. It uses the proof of equity (PoS) consensus model, in which the creator of the next block is selected according to the holdings of blockchain native currency (ERK, Eureka currency), rather than the hash rate measurement standard like the proof-of-work (PoW) using bitcoin. In proof of equity (PoS), blocks are cast by equity owners rather than mined by miners. As a result, the transaction and deployment costs (Tx costs) of the profit network for equity holders. It is worth noting that the inflation rate of Eureka coins is zero, which means that the creation of each block does not generate any new coins, and the 10% transaction fee (Tx fee) of each block will be burned, with the remaining 90% allocated to equity holders. When a coin is burned, it means that it is completely excluded from circulation and no one can use it....