Word #664 01010010111
fancy — BIP39 word #664
"fancy" is word #664 of the 2048 words in the official BIP39 English wordlist, between fan and fantasy.
In a seed phrase it stands for the 11-bit value
01010010111,
decimal index 663.
/ˈfænsi/ · adjective: elaborate and highly decorated, or expensive and stylish
Russian: причудливый
Binary Representation
Six 1-bits and five 0-bits; 462 of the 2048 indexes have exactly six 1-bits.
One wrong bit turns it into (leftmost bit first):
Position
#664 of 2048
Hex Index
0x297
4-Letter Prefix
fanc
About "fancy" in BIP39
- "fancy" has 5 letters, but the first four, "fanc", already identify it, because "fan" also begins fan and fantasy.
- Its first letters also spell another BIP39 word, fan. Write "fancy" out in full: cut short, it turns into a different valid word.
- "fancy" appears in one of the 24 official English test vectors of BIP39: vector #15 (word 14 of 24). Every official vector passes the checksum checker, and How BIP39 works shows how the entropy turns into such words.
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