Bridge for ERC721 token

The goal of these contracts and scripts is to allow users to transfer non-fungible tokens(NFT) between two Ethereum networks.

Deployment steps

Home Deployment (Sokol)

1. Deploy ERC721 Token (Example address: '0xa51120080cd19c6dd35a1154e3fdaa770555f746') that will be used as Home ERC721 contract
2. Deploy Bridge Contract (Example address: '0xba1ecd4b35953cc578f773580e6aecd3128e5775') that will be used as Home Bridge contract. To deploy, use the address of ERC721 contract which was deployed on step 1 as the first parameter. A second parameter is a number of signatures required to transfer NFT from one network to another. The third one is an array with addresses of all authorities who can transfer NFT

Foreign Deployment (Kovan)

1. Deploy ERC721 Token (Example address: '0xa51120080cd19c6dd35a1154e3fdaa770555f746') that will be used as Foreign ERC721 contract
2. Deploy Bridge Contract (Example address: '0xba1ecd4b35953cc578f773580e6aecd3128e5775') that will be used as Foreign Bridge contract. To deploy, use the address of ERC721 contract which was deployed on step 1 as the first parameter. A second parameter is a number of signatures required to transfer NFT from one network to another. The third one is an array with addresses of all authorities who can transfer NFT

Running bridge

1. Write down your private key in privateKey.json (Example private key: '0x48656c6c6f2c20776f726c6448656c6c6f2c20776f726c6448656c6c6f2c2048'). The address corresponded to specified private key should be listed as an authority in bridge contracts
2. Write down addresses of Home and Foreign Bridges in file contracts.json
3. Run bridge.py that will be the main script of the bridge