bitcoin-ruby(create tx)

require 'bitcoin'

Bitcoin.network = :testnet3

code:tx

tx = Bitcoin::Protocol::Tx.new

tx.lotck_time = 1571736000

prev_tx_hash = "txid"

prev_output_index = "index"

tx_in = Bitcoin::Protocol::TxIn.from_hex_hash(prev_tx_hash, prev_output_index)

tx.add_in(tx_in)

address = "address"

value = "value"

tx_out = Bitcoin::Protocol::TxOut.value_to_address(value, address)

tx.add_out(tx_out)

code:鍵

secret_key = "secret_key"

key = Bitcoin::Key.from_base58(secret_key)

code:署名

redeem_script = "redeem_script"

script_pubkey = "script_pubkey"

prev_script_pubkey = Bitcoin::Script.new(script_pubkey.htb)

prev_tx_value = "value"

sig_hash = tx.signature_hash_for_witness_input(0, redeem_script.htb, prev_tx_value)