Abstract: A blockchain system for containing authority within a distributed consensual system includes a blockchain network of participating user devices. A participating user device, having a memory and a processor, is configured to create an account linking blockchain transaction to link a developer account with an external authority account of a user of the device. The user device is further configured to publish a recipe associated with the user's developer account, receive, from an external authority, a receipt indicating purchase of the recipe by another user connected to the distributed consensual system, create a recipe blockchain transaction including data identifying the recipe and the receipt, and broadcast the recipe blockchain transaction on the blockchain network. Upon validation, the user receives payment via one or more additional blockchain transactions.

Abstract: A request is received at a proxy server for a web page, the request originating from a client network application of a client device. The requested web page includes multiple references to multiple images. The proxy server retrieves the requested web page. The proxy server modifies code of the retrieved web page such that the client network application will not, for each one of images, request that image until the location where that image is to be displayed is within a viewport of the client network application or within a defined distance from the viewport of the client network application. The proxy server transmits the modified web page to the client device.

Abstract: A request is received at a proxy server for a web page, the request originating from a client network application of a client device. The requested web page includes multiple references to multiple images. The proxy server retrieves the requested web page. The proxy server modifies code of the retrieved web page such that the client network application will not, for each one of images, request that image until the location where that image is to be displayed is within a viewport of the client network application or within a defined distance from the viewport of the client network application. The proxy server transmits the modified web page to the client device.

Abstract: A request is received at a proxy server for a web page, the request originating from a client network application of a client device. The requested web page includes multiple references to multiple images. The proxy server retrieves the requested web page. The proxy server modifies code of the retrieved web page such that the client network application will not, for each one of images, request that image until the location where that image is to be displayed is within a viewport of the client network application or within a defined distance from the viewport of the client network application. The proxy server transmits the modified web page to the client device.

Abstract: A request is received at a proxy server for a web page, the request originating from a client network application of a client device. The requested web page includes multiple references to multiple images. The proxy server retrieves the requested web page. The proxy server modifies code of the retrieved web page such that the client network application will not, for each one of images, request that image until the location where that image is to be displayed is within a viewport of the client network application or within a defined distance from the viewport of the client network application. The proxy server transmits the modified web page to the client device.

Abstract: A web page is received at a client device. The web page includes at least one reference to an image. The client device determines a display size of the image. The client device transmits a request for the image, where the request includes an indication of a set of one or more requested dimensions for the image that is equal or substantially equal to the determined display size. The client device receives the image having a size that is equal or substantially equal to the set of requested dimensions, and the client device displays the image.