A Beginner's Guide to Decentralized Biobanking

Biobanks play a critical role in advancing biomedical research, yet they face persistent challenges related to sample findability, provenance verification, and cross-institutional collaboration. Existing systems lack standardization, suffer from data silos, and often fail to meaningfully engage donors, resulting in underutilized samples and inefficiencies. Blockchain technology, with its features of immutability, transparency, and decentralized trust, is well suited to help address these challenges. This paper explores the potential of blockchain-based decentralized biobanking, introducing key technological concepts such as distributed ledgers, smart contracts, and privacy-preserving cryptographic protocols. By enabling clear provenance trails, partially automated governance, and ethical compliance mechanisms, blockchain protocols can meaningfully address biobanking's core issues of trust, coordination, and operational complexity. We examine practical applications in improving sample visibility and governance and ensuring donor-centric ethical practices. While implementation challenges such as privacy regulations, scalability, and organizational adaptation remain, the paper argues that blockchain technology provides a robust technical framework for enhancing biobank functionality and fostering collaboration. As the field evolves, blockchain-enabled biobanking networks hold significant potential to accelerate biomedical research.