Data sharing via distributed ledgers

A computing device, comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, cause the computing device to:
• obtain, from a third-party server system, a request for account information, wherein the request for account information comprises an alias token;
• transmit, to a computing device, a verification request comprising an identification of the third-party server system;
• obtain verification request response data comprising an account identifier;
• when the verification request response data indicates that account information should be shared:
• generate a distributed ledger;
• generate a transaction block comprising a mapping of the third-party server system to the system, the alias token, and the account identifier;
• record the transaction block on the distributed ledger;
• and
• transmit, to the third-party server system, the account information;
• obtain, from a requesting system, request data comprising a user account identifier associated with an account maintained by the server system and an indication of desired data;
• identify, based on the request data, the alias token associated with the user account identifier;
• determine at least one related server system based on the alias token;
• transmit, to each of the at least one related server systems, a message comprising the alias token and the indication of desired data;
• obtain, from each of the at least one related server systems, at least one response component comprising data corresponding to the indication of desired data and associated with the alias token;
• generate response data based on the indication of desired data, wherein the response data comprises the at least one response component;
• and
• transmit, to the requesting system, the response data.

A non-transitory machine-readable medium storing instructions that, when executed by one or more processors, cause the one or more processors to perform steps comprising:

• obtaining a sharing request comprising an account identifier and an indication of at least one related server system;
• generating an alias token based on the account identifier;
• generating a transaction block comprising the account identifier, the indication of the at least one related server system, and the alias token;
• recording the transaction block on a distributed ledger;
• obtaining request data comprising an account identifier and an indication of desired data;
• identifying, based on the request data, the alias token associated with the account identifier;
• determining a transaction block identifying a related server system based on the alias token, wherein the transaction block comprises a start date and an end date;
• determining a current date when the request data was obtained;
• and
• when the current date is after the start date and before the end date:
• transmitting, to the related server system, a message comprising the alias token and the indication of desired data;
• and
• obtaining, from the related server system, a response component comprising data corresponding to the indication of desired data and associated with the alias token;
• and
• generating response data based on the request data, wherein the response data comprises the response component when the current date is after the start date and before the end date.