Identity attestation system and method

A method, comprising:

• receiving a request associated with a communication device, the communication device being associated with a user, the request comprising a unique identifier associated with the communication device and a shared value, the shared value comprising a data type;
• obtaining identifiers for a plurality of client devices associated with the communication device, based on data stored in a distributed ledger;
• retrieving metadata associated with each of the plurality of client devices, wherein the metadata is of a same data type as the shared value;
• determining, using the retrieved metadata and the shared value, an identity score;
• and
• providing a response to the request based on the identity score.

Non-transitory computer-readable media storing code which, when executed by at least one processor of a networked computer system, causes the computer system to implement:

• receiving a request associated with a communication device, the communication device being associated with a user, the request comprising a unique identifier associated with the communication device and a shared value, the shared value comprising a data type;
• obtaining identifiers for a plurality of client devices associated with the communication device, based on data stored in a distributed ledger;
• retrieving metadata associated with each of the plurality of client devices, wherein the metadata is of a same data type as the shared value;
• determining, using the retrieved metadata and the shared value, an identity score;
• and
• providing a response to the request based on the identity score.

A networked computer system comprising at least one processor, the at least one processor being configured to implement:

• receiving a request associated with a communication device, the communication device being associated with a user, the request comprising a unique identifier associated with the communication device and a shared value, the shared value comprising a data type;
• obtaining identifiers for a plurality of client devices associated with the communication device, based on data stored in a distributed ledger;
• retrieving metadata associated with each of the plurality of client devices, wherein the metadata is of a same data type as the shared value;
• determining, using the retrieved metadata and the shared value, an identity score;
• and
• providing a response to the request based on the identity score.