Abstract: An example operation may include one or more of identifying a transaction from a blockchain node to be committed to a blockchain, determining a current amount of block space reserved by other blockchain nodes of the blockchain from a schedule, determining whether there is enough block space available for the transaction, and creating a block space reservation for the transaction.

Abstract: An example method of operation may include one or more of identifying a number of share chains from a smart contract stored in a blockchain, identifying a contributed block received from a miner entity associated with one of the share chains, determining whether the contributed block is valid for the one share chain, and updating the one share chain based on the contributed block.

Abstract: A blockchain configuration may be used to store smart contracts. One example method of operation may include one or more of identifying a metric configuration associated with a smart contract stored in a blockchain, logging an event which is part of the metric configuration, determining whether the event supports requirements of the smart contract, determining whether a smart contract policy in the smart contract matches a system policy, and updating the smart contract on the blockchain when the requirements of the smart contract are supported by the event and the smart contract policy matches the system policy.

Abstract: An example system may include a processor and memory, wherein the processor is configured to perform one or more of gather hashed commitments inputs from a plurality of user peers until a current time of a blockchain network equals to a hashed commitments inputs end time (t1), collect plain text inputs until the current time of the blockchain network equals to a plain text inputs collection end time (t2), wherein the t2 is greater than the t1, and execute a chaincode of the smart contract to: compare generated hashes of the plain text inputs against previously stored hashes, in response to a match, store the plain text inputs into an input array, and perform a compute function on the input array.

Abstract: An example operation may include one or more of identifying a smart contract, processing the smart contract to create a smart contract definition, determining whether the smart contract has been accepted by identified parties, when the smart contract has been accepted by the identified parties, generating a smart contract definition hash, and forwarding the smart contract definition hash to one or more blockchains.

Abstract: An example operation may include one or more of identifying a transaction from a blockchain node to be committed to a blockchain, determining available channels for assignment, assigning a channel to the blockchain node, and transmitting the transaction to the blockchain on the assigned channel.

Abstract: An example system may include a processor and memory, wherein the processor is configured to perform one or more of gather hashed commitments inputs from a plurality of user peers until a current time of a blockchain network equals to a hashed commitments inputs end time (t1), collect plain text inputs until the current time of the blockchain network equals to a plain text inputs collection end time (t2), wherein the t2 is greater than the t1, and execute a chaincode of the smart contract to: compare generated hashes of the plain text inputs against previously stored hashes, in response to a match, store the plain text inputs into an input array, and perform a compute function on the input array.

Abstract: Systems, methods, and computer program products to perform an operation comprising receiving, via an interface, a first review specifying a first rating value, a second rating value, and a textual review for an application in an application store, associating the first review in the application store with the first rating value, invoking a semantics analysis engine to determine that the textual review specifies a first known performance issue for the application, determining, based on an update to the application and reviews for the application received subsequent to the update to the application, that the first known performance issue has been resolved, and associating the first review in the application store with the second rating value.

Abstract: An example operation may include one or more of identifying a transaction from a blockchain node to be committed to a blockchain, determining available channels for assignment, assigning a channel to the blockchain node, and transmitting the transaction to the blockchain on the assigned channel.

Abstract: An example method of operation may include one or more of identifying a number of share chains from a smart contract stored in a blockchain, identifying a contributed block received from a miner entity associated with one of the share chains, determining whether the contributed block is valid for the one share chain, and updating the one share chain based on the contributed block.

Abstract: An example operation may include one or more of identifying a transaction from a blockchain node to be committed to a blockchain, determining a current amount of block space reserved by other blockchain nodes of the blockchain from a schedule, determining whether there is enough block space available for the transaction, and creating a block space reservation for the transaction.

Abstract: An example operation may include one or more of identifying a smart contract, processing the smart contract to create a smart contract definition, determining whether the smart contract has been accepted by identified parties, when the smart contract has been accepted by the identified parties, generating a smart contract definition hash, and forwarding the smart contract definition hash to one or more blockchains.

Abstract: Systems, methods, and computer program products to perform an operation comprising receiving, via an interface, a first review specifying a first rating value, a second rating value, and a textual review for an application in an application store, associating the first review in the application store with the first rating value, invoking a semantics analysis engine to determine that the textual review specifies a first known performance issue for the application, determining, based on an update to the application and reviews for the application received subsequent to the update to the application, that the first known performance issue has been resolved, and associating the first review in the application store with the second rating value.

Abstract: A blockchain configuration may be used to store smart contracts. One example method of operation may include one or more of identifying a metric configuration associated with a smart contract stored in a blockchain, logging an event which is part of the metric configuration, determining whether the event supports requirements of the smart contract, determining whether a smart contract policy in the smart contract matches a system policy, and updating the smart contract on the blockchain when the requirements of the smart contract are supported by the event and the smart contract policy matches the system policy.