An example operation may include one or more of generating, by a transaction initiator peer, a key pair for a transaction on a blockchain, querying, by the transaction initiator peer, a built-in account manager to discover webhooks of a plurality of blockchain peers, comparing, by the transaction initiator peer, query results from the plurality of the blockchain peers to ensure consistency, encrypting, by the transaction initiator peer, a transaction data with a key of the key pair based on the ensured consistency of the query results, committing, by the transaction initiator peer, the transaction data to the blockchain, and in response to a successful commitment of the transaction data, instantiating, by the transaction initiator peer, a client application executed on the transaction initiator peer to post a decryption key for the transaction data to webhook URLs of the plurality of the blockchain peers.