Systems and methods for a federated directory service

A non-transitory computer-readable media comprising computer-readable instructions stored thereon that when executed by one or more processors of a requesting entity cause the processor to:

• receive a first request to execute a transaction, wherein the first request includes an alias associated with a user;
• transmit, in response to the first request, a second request to a distributed ledger to request an identity of a contributing entity, wherein the contributing entity previously contributed user data associated with the user to the distributed ledger;
• receive, in response to the second request, a distributed ledger authentication request from the distributed ledger for the requesting entity's certificate to authenticate the requesting entity at the distributed ledger;
• and
• receive, in response to the distributed ledger authenticating the requested entity using the certificate, the identity of the contributing entity from the distributed ledger, wherein receiving the identity of the contributing entity comprises receiving data associated with a lookup API associated with the contributing entity, wherein the data associated with the lookup API includes a URL for the lookup API;
• generate and transmit, in response to receiving the identity of the contributing entity, a third request to the contributing entity for account information of the user, wherein the third request is executed using the lookup API associated with the contributing entity at the URL for the lookup API;
• receive, in response to the third request, a contributing entity authentication request from the contributing entity for a certificate of the requesting entity to authenticate the requesting entity at the contributing entity;
• receive, in response to the third request and the contributing entity authenticating the requesting entity using the certificate, a token associated with the account information of the user from the contributing entity;
• and
• execute the transaction using the token.