The fixture contains bytes 61 62 63 in hexadecimal, with no byte-order mark, newline or trailing space. Those three bytes produce deterministic SHA-2 outputs.

Expected SHA-256

ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad

Expected SHA-384 and SHA-512 lengths

SHA-384 begins cb00753f and contains 96 hexadecimal characters. SHA-512 begins ddaf35a1 and contains 128. Compare the complete output shown by the tool, not these prefixes.

Verify source and digest independently

A comparison is meaningful only when the expected digest came from a channel you already trust and names the exact file version you selected. Compare the complete hexadecimal value, algorithm label, file name, version and publisher instructions. A matching digest detects byte equality with that value; it does not scan the file, verify a signature or establish who published either input.