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Scraped on 30/05/2025, 14:58:42 UTC
But I have seen references to a third static item of information that is either "Bitcoin seed" or "mnemonic" that is also hashed in there with the above two items I mentioned.  So which is it?  "Bitcoin seed"?  Or "mnemonic"?
You're getting the articles mixed-up.
"Bitcoin seed" is for generating the master private key from the binary seed.
"mnemonic" is for generating the binary seed from the seed phrase (mnemonic seed).

The website shared by mcdouglasx should be accurate and easy to understand.
However, in "hd-wallets" it didn't specifiedspecifiy the steps on how to generate the master prvKey from the binary seed.
For that, refer to BIP32 (link) or expand its "HMAC-SHA512 [+]" tool.
Original archived Re: Steps from Seed Phrase to Master Private Key
Scraped on 30/05/2025, 14:53:43 UTC
But I have seen references to a third static item of information that is either "Bitcoin seed" or "mnemonic" that is also hashed in there with the above two items I mentioned.  So which is it?  "Bitcoin seed"?  Or "mnemonic"?
You're getting the articles mixed-up.
"Bitcoin seed" is for generating the master private key from the binary seed.
"mnemonic" is for generating the binary seed from the seed phrase (mnemonic seed).

The website shared by mcdouglasx should be accurate and easy to understand.
However, in "hd-wallets" it didn't specified the steps on how to generate the master prvKey from the binary seed.
For that, refer to BIP32 (link).