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2026-07-27 14:00
Building a Perceptual Hash Pipeline for Video Deduplication in Python
A single viral clip never stays a single file. Within hours of a video trending, our crawlers pull the "same" clip back a dozen times: re-encoded at a lower bitrate, letterboxed for a vertical feed, watermarked by an aggregator, trimmed by three seconds, or mirrored with a 2% zoom to dodge platform fingerprinting. A byte-for-byte SHA-256 sees twelve unique videos. Our users see one clip spammed ac...