EntropyLab releases candidate build of offline Bitcoin key and wallet calculator

EntropyLab has released v1.0.0rc1, the first candidate version of its self-contained Bitcoin key and wallet calculator, according to a post by Bitcoin News on X. The tool runs as a single HTML file, does not require an internet connection, and does not generate entropy on its own. Instead, users can supply their own entropy and calculate keys and wallets in a fully offline environment. The application supports multisig, PSBT, BIP-85, Silent Payments, vanity addresses, watch-only wallet export, and randomness analysis. The release is reproducible and can be verified through signatures from four independent signers. The team said users should download and verify the file before moving it to an air-gapped computer. A full v1.0.0 release will come after testing of the candidate version is completed.