Examples described herein relate to integrating a blockchain-enabled reader with a blockchain network over machine-to-machine communication protocol. A subscriber node may receive event data published by a publisher node. The event data may be communicated to the publisher node from a blockchain-enabled reader using a machine-to-machine communication protocol. The event data may be attested by the blockchain-enabled reader using a decentralized identity provisioned to the blockchain-enabled reader from the blockchain network. The decentralized identity of the blockchain-enabled reader may be verified. The event data may be submitted by the subscriber node to a distributed ledger upon successful verification of the decentralized identity of the blockchain-enabled reader.