Block-chain enabled service provider system

A method comprising:

• receiving a request for a selected service;
• obtaining, from the request, a user identifier;
• and
• determining, based on the user identifier and a permission data structure associated with a service device corresponding to the selected service, whether to provide the selected service, wherein the permission data structure is maintained on a distributed ledger and comprises one or more user identifiers that have been granted access to the service device.

A non-transitory computer readable storage medium comprising memory with instructions encoded thereon, the instructions, when executed, causing one or more processors to perform operations, the instructions comprising instructions to:

• receive a request for a selected service;
• obtain from the request, a user identifier;
• and
• determine, based on the user identifier and a permission data structure associated with a service device corresponding to the selected service, whether to provide the selected service, wherein the permission data structure is maintained on a distributed ledger and comprises one or more user identifiers that have been granted access to the service device.

A system comprising:

• memory with instructions encoded thereon;
• and
• one or more processors that, when executing the instructions, are caused to perform operations comprising:
• receiving a request for a selected service;
• obtaining, from the request, a user identifier;
• and
• determining, based on the user identifier and a permission data structure associated with a service device corresponding to the selected service, whether to provide the selected service, wherein the permission data structure is maintained on a distributed ledger and comprises one or more user identifiers that have been granted access to the service device.