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Titolo: Dany: A Scalable State Channel for IoT Smart-Contract Execution

Aula: II - Palazzo delle Scienze
Quando: martedì 14/07/2026 11:00-13:00


Blockchain technology was introduced to support cryptocurrency
transactions without relying on a trusted third party. With smart
contracts, blockchains evolved into platforms for decentralised
applications, where mutually distrusting parties can execute shared
logic and obtain verifiable results. However, smart-contract platforms
still face major scalability limitations, such as low throughput, high
latency, and transaction costs. These issues are particularly critical
in Internet of Things scenarios, where devices continuously generate
large volumes of data that may require near real-time processing.
Executing all logic and storing all data on-chain is therefore
impractical. Second-layer solutions address this problem by moving
computation off-chain while using the blockchain only when necessary.
State channels follow this approach: parties execute smart-contract
logic off-chain and interact with the blockchain mainly for finalisation
or dispute resolution. Nevertheless, existing state-channel protocols
are not always suitable for IoT applications. Their execution models and
dispute-resolution strategies may fail to accommodate the scalability
and execution requirements of data-intensive IoT systems. This talk
briefly reviews the state of the art and presents Dany, a patented
scalable state-channel protocol for data-intensive smart-contract
execution. Dany targets scenarios where trusted devices produce
authenticated data streams and mutually distrusting processes execute
smart-contract logic off-chain. The blockchain is used only as an
adjudication layer.