What was the name of the protocol that initially introduced smart contracts and the idea of cryptocurrencies that weren$$t created using a software fork? Ether Mastercoin Polkadot Dogecoin Which of the following statements is true about the Omni Layer? $(1)$ Omni Layer metadata is inserted into the OP$\_$RETRUN field in a Bitcoin transaction. $(2)$ The Bitcoin blockchain$$s hash power and security is not needed due to the implementation of the OP$\_$RETURN field. $121$ and $2$ Neither $1$ or $2$