Yeah, it’s basically the same thing with a bit of a twist. A Viking coffin is a one‑time write‑once‑read‑only vault. The body’s sealed, a wax seal is applied, and a witness signs—basically a checksum and a physical signature. Firmware updates work the same way: you create an image, run it through a hash function, sign it with a private key, and the device only installs it if the signature matches. Both systems guard against tampering by ensuring the stored data hasn’t changed since it was first written. The difference is that a coffin never gets patched, so you can’t “update” a burial rite like you can patch software, but the logic of “write, seal, verify” is identical. If you want to dig deeper, think of the coffin as a hard‑driven hard drive in a very slow, immutable mode.