It looks like you're asking whether the prodkeys (production keys) for SAK (likely the System Application Key used in certain software or DRM systems, such as for games or console tools) are correct for the year 2021, and you're referencing a "solid blog post."
Best Practices
This specific phrase typically refers to using the Switch Army Knife (SAK) GUI to manage Nintendo Switch files, specifically ensuring your common keys (prod.keys) and title keys (title.keys) are correctly recognized for tasks like converting files (e.g., XCI to NSP). sak are the keysdat prodkeys correct 2021
Software vendors now use AI-driven license validation and entropy-based key verification. A static list of "correct prodkeys" cannot remain valid for more than a few months after a software release. By late 2021, most publicly shared keysdat databases were already obsolete. It looks like you're asking whether the prodkeys
prod.keys Validity (2021 Standard)The query regarding whether prod.keys (often associated with toolkits or archives) are "correct" for 2021 refers to the encryption keys used by the Nintendo Switch operating system (Horizon OS). In 2021, Nintendo released firmware updates (versions 12.0.0 through 13.2.1) that introduced new cryptographic keys. List file paths and filenames: sak, keysdat, prodkeys
Whether keys from 2021 are "correct" depends entirely on the game you are trying to process: