BTDSI: A blockchain-based trusted data storage mechanism for Industry 5.0

Industry 5.0 is seen as the next stage of the industrial revolution. However, the centralized management of the vast amount of data in Industry 5.0 poses significant security challenges. Because blockchain can provide a stable decentralized network for data in Industry 5.0, blockchain technology becomes an ideal solution for the security of data in Industry 5.0. However, with the explosion of data in Industry 5.0, the rapidly growing storage requirements are putting unbearable pressure on nodes and users, making it especially important to address the scalability of the blockchain. While using light nodes can alleviate storage pressure on nodes, it can also lead to data availability attacks. To address the above issues, this paper proposes a blockchain-based trusted data storage mechanism for Industry 5.0. The mechanism combines sharding and two-layer Merkle tree structures, and employs random low-density parity codes to code the tree. It enables light nodes to verify the authenticity of data and solve data availability attacks while improving the throughput of the blockchain. In addition, by using erasure codes to construct lowstorage blockchain nodes, the network load of the nodes is effectively reduced, which solves the scalability issues of the blockchain. (c) 2023 The Authors. Published by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).