http://pfpmd7dd5ijt4add2sfi4djsaij4u3ebvnwvyvuj6aeipe2f5llptkid.onion/ui3/s/f8fb1e9501ad4c67b2e1aad984d9dda1
id=28100994 >Perceptual hashes are designed to survive cropping, rotation, scaling, and embedding but all of those things mean that false-positives become a concern. https://web.archive.org/web/20210814175323/http://www.phash.org/ >Such attacks can include rotation, skew, contrast adjustment and different compression/formats.