A blockchain may store transactions for various purposes which may be later accessed by interested parties for ledger verification. One example method of operation may comprise one or more of receiving a blockchain transaction, identifying a proof-of-work is generated for the blockchain transaction via a network entity, transmitting the proof-of-work and a select portion of ledger data to a registered third party via an encrypted message based on a third party key, validating the proof-of-work via the third party, and providing a reward to the network entity.