EntropyLab released a candidate version of the Bitcoin offline key and wallet calculator

EntropyLab has released the first candidate version of its self-contained Bitcoin key and wallet calculator v1.0rc1. The application runs as a single HTML file, requiring no internet connection and does not generate entropy on its own; users can provide their own entropy to calculate keys and wallets in a completely offline environment.

The tool supports multi-signature, PSBT, BIP-85, Silent Payments, vanity addresses, watch-only wallet exports, and random number analysis. This version is reproducible and can be verified through the signatures of four independent signers; the team recommends that users download and verify the file before transferring it to an isolated network computer. The official version v1.0 will be released after the candidate version testing is completed.