LAVITA is a blockchain-AI based, next-generation healthcare platform. It enables the use of massive biomedical datasets for research while preserving individual privacy and data ownership. The platform is designed as a decentralized, peer-to-peer data marketplace connecting health providers, such as hospitals and healthcare institutions, data contributors or individual patients, and data miners like pharmaceutical companies and research institutions. The first step in the process allows data contributors or individuals to securely and decentralisedly share their private health data, with no intermediaries or servers involved. In return, they will be compensated by data miners.