# Appendix

* Cosmos SDK: [PR #4209](https://github.com/cosmos/cosmos-sdk/pull/4209)
* Cosmos SDK: [Issue #4046](https://github.com/cosmos/cosmos-sdk/issues/4046)
* Interchain Standards: [ICS #17](https://github.com/cosmos/ics/issues/30)
* Binance: [BEP #7](https://github.com/binance-chain/BEPs/pull/7)
* Ethereum: [EIP #721](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md)