v.0.2pre-beta features

• Added BlockExplorer

• Added YARchain managing DAO (YAR DAO) infrastructure

• Published YAR DAO source code

• Added cross-chain coin transfer support

• Added cross-chain erc20 transfer support

• Added cross-chain erc721 transfer support

• Added cross-chain erc1155 transfer support

• Added support for Arbitrum blockchain

• Added support for Avalanche blockchain

• Added support for Optimism blockchain

• Added support for Base blockchain