Distributed ledger technology that maintains a continuously growing list of records secured using cryptography, enabling decentralized applications.
Blockchain technology powers cryptocurrencies and can track supply chain products from factory to store without a central authority.
AWS and OCI offer managed blockchain networks (e.g., Hyperledger Fabric). Azure’s dedicated managed blockchain service was retired; Microsoft positions Azure Confidential Ledger for tamper-evident logs and relies on partners for full blockchain networks. Google Cloud does not have a first-party managed blockchain service; customers typically deploy open-source frameworks on GCE/GKE or use partner marketplaces.