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Compression is the reduction in size of data without losing information.

8 votes
6 answers
16k views

Can a large file be hashed down to 32 bytes, and then reconstructed from the hash? [duplicate]

We can hash a file or data using multihash or SHA-256, but can we retrieve the original data or file from the hash? Are there any methods to retrieve the original file or data from a hash of it witho …
Anu Davis's user avatar
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