Imports github.com/CryptocurrencyCabal/btcutil github.com/CryptocurrencyCabal/btcutil/base58 github.com/CryptocurrencyCabal/htcd/btcec github.com/CryptocurrencyCabal/htcd/chaincfg github.com/CryptocurrencyCabal/htcd/wire Standard library imports bytes crypto/hmac crypto/rand crypto/sha512 encoding/binary errors fmt math/big