recompressed duplicate

A duplicate upload of an existing image that has been recompressed by the hosting platform where it was posted.

For example, post #11516944 was originally posted on Twitter and later uploaded to Pixiv FANBOX as post #11703163. Uploading the Twitter version to FANBOX and downloading it again produces a larger file that is otherwise nearly indistinguishable from the original Twitter version.

Use this tag only when the duplicate can be confirmed to result from recompression by the hosting platform. Not to be confused with pixel-perfect duplicate, which refers to images with the same pixel hash.