An example operation may include one or more of submitting, by a blockchain client, a transaction proposal to a blockchain network, endorsing, by one or more endorser nodes or peers, the transaction proposal, endorsing comprising updating an in-process world state list, providing one or more composite endorsements, each comprising a base result and a forecasted result corresponding to the transaction proposal, submitting an endorsed transaction in response to the one or more composite endorsements, validating, by a committer node or peer, the endorsed transaction, committing the endorsed transaction to the blockchain network, and removing the committed transaction from the in-process world state list.