[Cryptography] Internet independent Blockchain

[Matthieu CHARETTE]

On Mon, Dec 5, 2022, 05:45 Joshua Marpet <Joshua.Marpet at guardedrisk.com>
wrote:

> SBOM's. Software Bill of Materials or similar. Some very restrictive
> hardware, which updates the database (blockchain) on a regular, but
> infrequent basis. Every update is when that node connects and downloads the
> update/transaction/packet. If you have downloaded it, and installed the
> associated data, you have the latest version. Your node is updated, and
> sends the record of that update on its way. Immutable record of you
> updating, which is useful for cyberinsurance, aggregate data of how many
> system sare updated to latest version, or not. It's a little disjointed
> yes, but hey, I'm trying here.
>

Sounds like this system is using a centralized database. But apart from
that, what is making this Blockchain resistant to rewrites?
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