Blockchain: A blockchain is a decentralized and transparent digital ledger that records and stores information across a network of computers. It relies on cryptographic principles and consensus algorithms to ensure the security, immutability, and integrity of data, making it resistant to modification or tampering.
Distributed Ledger Technology (DLT): Distributed Ledger Technology is a broader term that encompasses various systems, including blockchain, that enable the recording, storage, and synchronization of data across multiple nodes or computers in a decentralized network. DLT provides a transparent and secure way to manage and verify transactions or digital assets without relying on a central authority.
Despite significant hype and many use cases put forward, scalability and cost pressures mean real-world applications remain elusive. (Source: No commercial use for blockchain, say banks - bobsguide.com published 09/10/2019)
Blockchain Fails to Gain Traction in the Enterprise. Maersk and IBM last month shut down their global platform that was supposed to bring blockchain to the shipping industry. Other big bets are moving slowly. (Source: Blockchain Fails to Gain Traction in the Enterprise - WSJ published 15/12/2022)