Fig. 2
From: Decentralized and permission-less green energy certificates with GECKO
A smart meter or DSO \(a \in \mathbb {A}\) creates a series of one or more events E1,E2,…,EN and stores the event data in a distributed hash table. The corresponding hash is locked in the blockchain. In order to retrieve a list of events, the hashes are read from the blockchain and the hash is used as the key to load event data from the storage