def sign(utxo, priv, destaddrs, segwit=True): """Sign a tx sending the amount amt, from utxo utxo, equally to each of addresses in list destaddrs, after fees; the purpose is to create a large number of utxos. If segwit=True the (single) utxo is assumed to be of type segwit p2sh/p2wpkh. """ results = validate_utxo_data([(utxo, priv)], retrieve=True, segwit=segwit) if not results: return False assert results[0][0] == utxo amt = results[0][1] ins = [utxo] txtype = 'p2sh-p2wpkh' if segwit else 'p2pkh' estfee = estimate_tx_fee(1, len(destaddrs), txtype=txtype) outs = [] share = int((amt - estfee) / len(destaddrs)) fee = amt - share * len(destaddrs) assert fee >= estfee log.info("Using fee: " + str(fee)) for i, addr in enumerate(destaddrs): outs.append({'address': addr, 'value': share}) unsigned_tx = btc.mktx(ins, outs) amtforsign = amt if segwit else None return btc.sign(unsigned_tx, 0, btc.from_wif_privkey(priv, vbyte=get_p2pk_vbyte()), amount=amtforsign)
def sign(utxo, priv, destaddrs): """Sign a tx sending the amount amt, from utxo utxo, equally to each of addresses in list destaddrs, after fees; the purpose is to create a large number of utxos. """ results = validate_utxo_data([(utxo, priv)], retrieve=True) if not results: return False assert results[0][0] == utxo amt = results[0][1] ins = [utxo] estfee = estimate_tx_fee(1, len(destaddrs)) outs = [] share = int((amt - estfee) / len(destaddrs)) fee = amt - share*len(destaddrs) assert fee >= estfee log.info("Using fee: " + str(fee)) for i, addr in enumerate(destaddrs): outs.append({'address': addr, 'value': share}) unsigned_tx = btc.mktx(ins, outs) return btc.sign(unsigned_tx, 0, btc.from_wif_privkey( priv, vbyte=get_p2pk_vbyte()))