ArtistTokenFactory - 0x3519790a4cD44391CfE1da8ef79CC33f9944e43C,
PlatformToken - 0xb334A2EdB610d0d71894f103535f8147A120444A,
YouTubeStreamsAggregator - 0xf26C4210ec15126E6A8125E298E287ea07819559,
Exchange - 0x038F3700204EF5081b4cbEF9fF212Bfe46217966