A blockchain system provides progressive jackpots within a blockchain network of participating electronic devices. The blockchain system includes an electronic gaming machine storing a local blockchain and a system blockchain. The EGM is configured to identify a plurality of transactions for the first progressive jackpot account, each transaction of the plurality of transactions are deposit transactions from the first plurality of electronic gaming devices adding value to the first progressive jackpot account within the local blockchain. The EGM also determines a total sum amount of the plurality of transactions and creates a first deposit blockchain transaction including a first progressive jackpot account identifier and the total sum amount. The EGM transmits the first deposit blockchain transaction to one or more nodes of the second plurality of electronic gaming devices for addition to the system blockchain.