Imports github.com/btcsuite/btcd/btcec github.com/btcsuite/fastsha256 github.com/btcsuite/btcd/chaincfg github.com/btcsuite/btcd/wire github.com/btcsuite/btclog github.com/btcsuite/btcutil github.com/btcsuite/golangcrypto/ripemd160 Standard library imports hash crypto/sha1 sync time bytes crypto/rand encoding/binary encoding/hex errors fmt io math/big