ENSURING DATA INTEGRITY IN FREIGHT TRANSPORTATION SYSTEMS WITH UNSTABLE CONNECTIVITY: DAG-BASED LEDGER AS A TOOL FOR DEFERRED SYNCHRONIZATION
DOI:
https://doi.org/10.34185/1991-7848.itmm.2026.01.066Keywords:
DAG-DLT, freight transportation, data consistency, intermittent connectivity, CRDT, gossip protocol, eventual consistency, partition toleranceAbstract
The paper addresses the urgent problem of ensuring the consistency and immutability of logistics data under conditions of intermittent connectivity, which is characteristic of freight transportation. The limitations of classical blockchain protocols in the context of the CAP theorem when operating in dynamic transport networks are investigated. The transition from linear ledger structures to directed acyclic graphs (DAG) is justified, which allows parallel recording of events by different system nodes. An architectural solution is proposed, which includes a two-layer CRDT model for state synchronization and a two-level adaptive gossip protocol with proximity communication between vehicles. This approach is intended to ensure the eventual consistency of the system without losing data availability during network partitioning.
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