file in abyss

File hashes

Verify sample files with SHA-256

Each sample file lists a SHA-256 hash so you can confirm that the bytes you downloaded match the file described on this site.

What a hash is

A file hash is a fixed-length fingerprint computed from the file bytes. If even one byte of the file changes, a strong hash such as SHA-256 should produce a different value.

Why it matters

  • Integrity: confirm that a download was not truncated or corrupted.
  • Identity: check that two files with different names are actually the same bytes.
  • Reproducibility: pin tests to a known sample file version.

How to check a file

Compare the command output with the SHA-256 value shown next to the sample.

shasum -a 256 sample.ply
sha256sum sample.ply
Get-FileHash sample.ply -Algorithm SHA256

What a hash does not prove

A matching hash does not prove that a file is safe, licensed correctly, or semantically valid. It only proves that the downloaded bytes match the published fingerprint. Keep normal parser, sandboxing, and license review steps in place.