Importance

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Abstract

There is revealed a progressive and conditional delivery of digital contents. A given master digital content is previously divided in content blocks, each content block being associated with related content blocks presenting particular hierarchical and dependency characteristics. Responsive to user selection of the master digital content, for each selected content block, there is checked first the display of each related content block and upon positive checking there is displayed the considered selected content block. There is further disclosed steps of checking display performed from an analog capture of the user interface or from video frame buffer memory data. There may be detected predefined marks. There may be performed image similarity comparisons or image matching tests with expected images associated with content blocks. There are also disclosed predefined encryption keys being used to decipher one or a plurality of content blocks. In response to a negative display checking according to the invention, there is displayed a predefined content block such as a warning message, an authentication request, a kaptcha challenge, advertisement content or a blurred content block. There is discussed a correspondence of content blocks with DOM nodes.

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First Claim