  Age of information (AoI) is a recently proposed metric for quantifying data
freshness in real-time status monitoring systems where timeliness is of
importance. In this paper, we explore the data freshness in the Hyperledger
Fabric Blockchain-enabled monitoring network (HeMN) by leveraging the AoI
metric. In HeMN, status updates from sources are transmitted through an uplink
and recorded in a Hyperledger Fabric (HLF) network. To provide a stochastic
guarantee of data freshness, we derive a closed-form of AoI violation
probability by considering the transmission latency and the consensus latency.
Then, we validate our analytic results through the implemented HLF platform. We
also investigate the effect of the target successful transmission probability
(STP) on the AoI violation probability.
