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BIP-39: say what separates two words #2237

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BIP-39: say what separates two words #2237

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7 changes: 7 additions & 0 deletions bip-0039.mediawiki
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Expand Up @@ -48,6 +48,13 @@ are split into groups of 11 bits, each encoding a number from 0-2047, serving
as an index into a wordlist. Finally, we convert these numbers into words and
use the joined words as a mnemonic sentence.

Words are joined using a single space character (U+0020), except in Japanese,
where the ideographic space (U+3000) is used; see
[[bip-0039/bip-0039-wordlists.md|Wordlists (Special Considerations)]]. A sentence
is split back into words after NFKD normalization, which maps U+3000 to U+0020;
splitting on U+0020 before normalization reads a Japanese sentence as a single
word.

The following table describes the relation between the initial entropy
length (ENT), the checksum length (CS), and the length of the generated mnemonic
sentence (MS) in words.
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