What is SHA-256?
SHA-256 is a hashing algorithm that turns file bytes or text into a fixed-length fingerprint. If one byte changes, the fingerprint should change.
expected SHA-256: 9f86d081884c7d659a2feaa0c55ad015...
Documentation
These notes avoid unnecessary cryptographic jargon and focus on repeatable checks that ordinary teams can preserve.
SHA-256 is a hashing algorithm that turns file bytes or text into a fixed-length fingerprint. If one byte changes, the fingerprint should change.
expected SHA-256: 9f86d081884c7d659a2feaa0c55ad015...
SHA-512 is a longer hash from the same SHA-2 family. It is often used when a publisher wants a larger digest alongside SHA-256.
expected SHA-512: ee26b0dd4af7e749aa1a8ee3c10ae992...
A manifest is a readable list of files and metadata. It can include names, versions, expected hashes, dates and verification notes.
File integrity means the file you have still matches a known expected version. Hashes help compare the file you downloaded against a published value.
Offline verification means checking a file with local tools after the file and expected hash are already available. It reduces dependency on a live service.
Download the file, compute its local hash, compare it to the published hash, then record the tool, date and result in a report.
shasum -a 256 glyph_001.svg
A matching hash can show that bytes match an expected value. It cannot prove legal authorship, creator identity, license rights, intent or safety by itself.