Blockchain technology constitutes a paradigm shift in the way we conceive distributed architectures. A Blockchain system lets us build platforms where data are immutable and tamper-proof, with some constraints on the throughput and the amount of memory required to store the ledger. This paper aims to solve the issue of memory and performance requirements developing a multiple Blockchain architecture that mixes the benefits deriving from a public and a private Blockchain. This kind of approach enables small sensors - with memory and performance constraints - to join the network without worrying about the amount of data to store. The development is proposed following a context-aware approach, to make the architecture scalable and easy to use in different scenarios.

翻译：区块链技术构成了分布式架构设计范式的转变。区块链系统使我们能够构建数据不可篡改且防篡改的平台，但其吞吐量和存储账本所需内存量存在一定限制。本文旨在通过开发一种融合公有链与私有链优势的多区块链架构，解决内存与性能需求问题。该方法使受内存和性能限制的小型传感器能够加入网络，而无需担心待存储数据量。开发过程遵循上下文感知方法，以确保架构的可扩展性及在不同场景中的易用性。