Abstract: Disclosed herein are systems and methods for a method for controlling the temperature of a surface. In some embodiments, the method includes applying a variable input to a heat pump (e.g., a Peltier) in thermal communication with the surface. The variable input may vary about a voltage and may include a powered period and an unpowered period. In some embodiments, the method includes measuring a temperature of an element in thermal communication with the surface, determining, based on the temperature of the element, whether a temperature of the surface is within a safe temperature range for a user in thermal communication with the surface, in response to determining the surface is not within the safe temperature range, adjusting the voltage of the variable input to the heat pump, and in response to determining the surface is within the safe temperature range, continuing operation of the variable input at the voltage.

Abstract: Disclosed are materials and methods for improved single chain variable fragments.

Abstract: Described herein are a secure system for sharing private data and related systems and methods for incentivizing and validating private data sharing. In some embodiments, private data providers may register to selectively share private data under controlled sharing conditions. The private data may be cryptographically secured using encryption information corresponding to one or more secure execution environments. To demonstrate to the private data providers that the secure execution environment is secure and trustworthy, attestations demonstrating the security of the secure execution environment may be stored in a distributed ledger (e.g., a public blockchain). Private data users that want access to shared private data may publish applications for operating on the private data to a secure execution environment and publish, in a distributed ledger, an indication that the application is available to receive private data.

Abstract: Described herein are a secure system for sharing private data and related systems and methods for incentivizing and validating private data sharing. In some embodiments, private data providers may register to selectively share private data under controlled sharing conditions. The private data may be cryptographically secured using encryption information corresponding to one or more secure execution environments. To demonstrate to the private data providers that the secure execution environment is secure and trustworthy, attestations demonstrating the security of the secure execution environment may be stored in a distributed ledger (e.g., a public blockchain). Private data users that want access to shared private data may publish applications for operating on the private data to a secure execution environment and publish, in a distributed ledger, an indication that the application is available to receive private data.