Data isolation in a blockchain network

A non-transitory computer-readable storage medium storing one or more instructions executable by a computer system to perform operations comprising:

• receiving a request to perform a private transaction associated with at least one account;
• in response to receiving the request, performing, by a workflow node, the private transaction;
• in response to performing the private transaction, generating, by the workflow node, a representation of the private transaction configured to be accessible only to entities that are authorized to access the private transaction, the representation of the private transaction including an identity of a transaction participant associated with the at least one account;
• storing, in a private blockchain, the representation of the private transaction;
• generating, by the workflow node, an account record for the at least one account associated with the private transaction based at least in part on the private transaction, wherein the account record is configured to be accessible to at least one entity that is not authorized to access the representation of the private transaction in the private blockchain, the account record comprising an updated balance of the transaction participant associated with the at least one account;
• and
• storing, in a public blockchain, the account record.

A system, comprising:

• one or more computers;
• and
• one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations comprising:
• receiving a request to perform a private transaction associated with at least one account;
• in response to receiving the request, performing, by a workflow node, the private transaction;
• in response to performing the private transaction, generating, by the workflow node, a representation of the private transaction configured to be accessible only to entities that are authorized to access the private transaction, the representation of the private transaction including an identity of a transaction participant associated with the at least one account;
• storing, in a private blockchain, the representation of the private transaction;
• generating, by the workflow node, an account record for the at least one account associated with the private transaction based at least in part on the private transaction, wherein the account record is configured to be accessible to at least one entity that is not authorized to access the representation of the private transaction in the private blockchain, the account record comprising an updated balance of the transaction participant associated with the at least one account;
• and
• storing, in a public blockchain, the account record.