Home > News > Technology > BlackRock prepares private blockchain with custodians Technology BlackRock prepares private blockchain with custodians World's largest asset manager is in the testing phase of a private blockchain through Aladdin with custody banks. By Joe Parsons October 12, 2017 6:50 AM GMT To access this premium content, please LOG IN or Subscribe Tagged: #SIBOS, Aladdin, BlackRock, blockchain « Northern Trust hires new Netherlands head from BlackRock