Method for validating remote live video-recording identification of a user, wherein in a system comprising at least one recording device equipped to record a video, the following steps are carried out in succession: a) the recording device records (54, 64, 66) two or more watermarked identification videos capturing biometric features of the user and a personal identification document of the user including at least one user-related liveness check, wherein the two or more identification videos are watermarked, wherein during the recording of the identification videos, the recording device generates physical watermarking signals according to a unique or quasi-unique watermarking specification, wherein the physical watermarking signals enter the audio track and/or the video track by means of physical oscillations generated by a speaker device of the recording device and/or a vibration device of the recording device and recorded by a microphone, a camera and/or an accelerometer of the recording device, wherein at least two separate identification videos are recorded (64, 66) with at least one biometric identification video capturing the biometric features of the user and at least one separate document identification video capturing the personal identification document of the user, wherein the at least two separate identification videos are watermarked using different unique or quasi-unique watermarking specifications, b) the recorded watermarked identification videos are analysed by an analysing unit of the recording device or a server device during the recording of the watermarked identification videos or after finishing the recording of the watermarked identification videos, and c) the analysing unit analyses (56, 68) the watermarked identification videos for identification information of the user and for the presence of watermarking signals according to the unique or quasi-unique watermarking specifications, wherein the biometric identification video and the document identification video are compared with each other with respect to a similarity of recording parameters and/or environments. a) the recording device records (54, 64, 66) two or more watermarked identification videos capturing biometric features of the user and a personal identification document of the user including at least one user-related liveness check, wherein the two or more identification videos are watermarked, wherein during the recording of the identification videos, the recording device generates physical watermarking signals according to a unique or quasi-unique watermarking specification, wherein the physical watermarking signals enter the audio track and/or the video track by means of physical oscillations generated by a speaker device of the recording device and/or a vibration device of the recording device and recorded by a microphone, a camera and/or an accelerometer of the recording device, wherein at least two separate identification videos are recorded (64, 66) with at least one biometric identification video capturing the biometric features of the user and at least one separate document identification video capturing the personal identification document of the user, wherein the at least two separate identification videos are watermarked using different unique or quasi-unique watermarking specifications, b) the recorded watermarked identification videos are analysed by an analysing unit of the recording device or a server device during the recording of the watermarked identification videos or after finishing the recording of the watermarked identification videos, and c) the analysing unit analyses (56, 68) the watermarked identification videos for identification information of the user and for the presence of watermarking signals according to the unique or quasi-unique watermarking specifications,