Securing geo-physical presence

A computer program product for securing a geophysical presence of a user, the computer program product including at least one non-transitory computer readable storage medium having program instructions embodied therewith, the program instructions executable by at least one processor to cause the at least one processor to perform operations comprising:

• receiving, from a client device, user information associated with the user in a physical environment, wherein the user information comprises a unique identifier associated with the user;
• generating a unique pattern in response to receiving the information associated with the user, wherein the unique pattern is based on the unique identifier associated with the user;
• sending encoded information containing the unique pattern to a landmark device in the physical environment, wherein the encoded information causes the landmark device to present the unique pattern;
• receiving captured data from the client device in the physical environment, wherein the captured data comprises the unique pattern presented by the landmark device;
• verifying an identity and a physical presence of the user in the physical environment based on the captured data, wherein to verify the identity and the physical presence of the user in the physical environment, the at least one processor further performs operations comprising:
• analyzing the captured data for the unique pattern at the landmark device;
• and
• detecting if there is a match between the unique pattern at the landmark device in the captured data and an expected pattern at the landmark device;
• and
• utilizing a block-chain fabric to ensure that no two or more users claim the captured data comprising the unique pattern.