Imports github.com/PutinCoinPUT/ppcd/btcec github.com/PutinCoinPUT/ppcd/chaincfg github.com/PutinCoinPUT/ppcd/chaincfg/chainhash github.com/PutinCoinPUT/ppcutil github.com/PutinCoinPUT/ppcutil/base58 Standard library imports bytes crypto/hmac crypto/rand crypto/sha512 encoding/binary errors fmt math/big