The central part of the chart has been changed: instead of the "black hole" another USAF 1951 pattern has been placed right in the center of the capture area. Along with it there are number of square QR codes of different sizes. The smallest one still resolvable by a QR reader should be the measure of resolution. Each QR code encodes web address (URL) pointing to the individual web page on site https://www.film4ever.info . That page will eventually contain information about the specific resolution once the value is crowd-sourced from fellow digitizers like you. More details will be added soon.   The QR code online reader ( not affiliated with Vlads test target  ) is located    https://demo.dynamsoft.com/DBR/BarcodeReaderDemo.aspx  but other sites can and should be used as they may use different technologies to recognize QR codes. You may simply drug-and-drop the central part of the scanned negative to this site and observe which QR codes get resolved ...