Abstract: A system for assessing grip security, the system comprising: a contact surface having at least a first contact surface region and a second contact surface region, the first contact surface region being configured to resist slip less than the second contact surface region, a sensor for detecting slip in the first contact region.

Abstract: A system for estimating friction, the system including a contact surface including a plurality of protrusions extending from a base surface, the contact surface further including a first contact surface region and a second contact surface region, the first contact surface region being configured to resist slip less than the second contact surface region, and a sensor arrangement configured for detecting displacement of at least three of the plurality of protrusions in three different dimensions to measure a three-dimensional force applied to the at least three plurality of protrusions at a moment of slippage of the first contact surface region.

Abstract: A computing system receives a request to verify a user, the request comprising an indication of a jurisdiction in which the user will be verified. Based on the request, the computing system collects information related to the user. Based on the request, the computing system identifies a workflow corresponding to the jurisdiction. The workflow defines conditions for obtaining a verified status in the jurisdiction. The computing system executes the workflow to verify the user. The computing system hashes the verification record using a zero-knowledge proof protocol. The computing system generates a non-fungible token corresponding to the verification record. The non-fungible token is associated with a hashed version of the verification record. The computing system broadcasts the non-fungible token to a blockchain.

Abstract: A system for assessing grip security, the system comprising: a contact surface having at least a first contact surface region and a second contact surface region, the first contact surface region being configured to resist slip less than the second contact surface region, a sensor for detecting slip in the first contact region.