Abstract: A system includes an interface and a processor. The interface is configured to receive, from at least first and second electrodes of a catheter, first and second signals, respectively, which are acquired over at least a time interval by the at least first and second electrodes at an organ of a patient. The processor is configured to produce a three-dimensional (3D) representation of at least a portion of the catheter and first and second traces corresponding to the first and second signals, and the first and second traces are displayed in a 3D space relative to physical positions of the first and second electrodes on the catheter, respectively.

Abstract: Provided are methods and systems for authenticating communications. An intermediary authenticates one or more communications by transferring communications and by storing information about the communications. The stored information at least includes times associated with the communications and at least part of the contents of the communications. The stored information may in some cases be later retrieved in order to provide authentication of the communications, for example in the case of a dispute involving one or more parties to the communications.