b9_1155what is checksum?
a built-in check in a seed phrase that catches many typos.
it does not catch all of them: for random errors, roughly 1 in 16 still pass with 12 words and about 1 in 256 with 24. a valid checksum proves a valid phrase, not your phrase, and a word that isn't on the list is caught by the word list itself, not the checksum.
related words
- watch-only wallet a wallet that only knows the public key, so it can show balances but cannot spend.
- recovery test checking that your written backup really recreates the same wallet, without moving any coins.
- secret sharing (SLIP-39) a way to split a wallet backup into several shares, where a set number of them restores it.
part of the topic self-custody: free articles, more words and the guide.
checked . education, not advice. found a mistake? see corrections.