If you followed the methods above now you should be able to make and verify the correctness of BIP-39 seeds oneself (with minimum guidance from tools like binary to hex to decimal converters). Standard recovery phrases use a specific list of 2048 words following the BIP39 standard (Bitcoin Enhancement Proposal https://socialrus.com/story18676359/helping-the-others-realize-the-advantages-of-bip39-mnemonic-phrase-tool