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

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6 9 This question already has an answer here: Would it be possible to generate the original data from a SHA-512 checksum? 5 answers 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 without using IPFS? Or is there any encryption method which encrypts a 5 MB file and outputs a hash-like content of 32 bytes so that we can retrieve the original file from that 32 byte content? hash compression share | improve this question ...