Dfinity Stiftung

Stefan Kaestle

Yvonne-Anne Pignolet

Manu Drijvers

Johan Granström

Johan GRANSTRÖM

Embodiments of the invention relate to a distributed network. The distributed network comprises a replicated computing cluster and the replicated computing cluster comprises a plurality of nodes. Each of the plurality of nodes of the replicated computing cluster is configured to run a replica and each of the replicas is configured to run one or more computational units. Furthermore, each of the replicas is configured to perform consecutive processing rounds. The consecutive processing rounds comprise a consecutive processing of input blocks in a deterministic and replicated manner and thereby a sequence of round states is computed. Each of the replicas is further configured to perform software upgrades of the replica at handover states of pre-agreed handover rounds of the consecutive processing rounds and to provide, upon request of another replica, via a communication interface that is independent of the software upgrades, a handover package. The handover package is configured to enable an obtainment of the handover state.

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Zürich, Switzerland

Stefan Kaestle