block_type genesis_block()
{
block_type genesis;
genesis.version = 1;
genesis.previous_block_hash = null_hash;
genesis.merkle =
hash_digest{0x4a, 0x5e, 0x1e, 0x4b, 0xaa, 0xb8, 0x9f, 0x3a,
0x32, 0x51, 0x8a, 0x88, 0xc3, 0x1b, 0xc8, 0x7f,
0x61, 0x8f, 0x76, 0x67, 0x3e, 0x2c, 0xc7, 0x7a,
0xb2, 0x12, 0x7b, 0x7a, 0xfd, 0xed, 0xa3, 0x3b};
genesis.timestamp = 1231006505;
genesis.bits = 0x1d00ffff;
genesis.nonce = 2083236893;
transaction_type coinbase_tx;
coinbase_tx.version = 1;
coinbase_tx.locktime = 0;
transaction_input_type coinbase_input;
coinbase_input.previous_output.hash = null_hash;
coinbase_input.previous_output.index =
std::numeric_limits<uint32_t>::max();
// The Times 03/Jan/2009 Chancellor on brink of second bailout for banks
coinbase_input.input_script = coinbase_script(
data_chunk{0x04, 0xff, 0xff, 0x00, 0x1d, 0x01, 0x04, 0x45,
0x54, 0x68, 0x65, 0x20, 0x54, 0x69, 0x6d, 0x65,
0x73, 0x20, 0x30, 0x33, 0x2f, 0x4a, 0x61, 0x6e,
0x2f, 0x32, 0x30, 0x30, 0x39, 0x20, 0x43, 0x68,
0x61, 0x6e, 0x63, 0x65, 0x6c, 0x6c, 0x6f, 0x72,
0x20, 0x6f, 0x6e, 0x20, 0x62, 0x72, 0x69, 0x6e,
0x6b, 0x20, 0x6f, 0x66, 0x20, 0x73, 0x65, 0x63,
0x6f, 0x6e, 0x64, 0x20, 0x62, 0x61, 0x69, 0x6c,
0x6f, 0x75, 0x74, 0x20, 0x66, 0x6f, 0x72, 0x20,
0x62, 0x61, 0x6e, 0x6b, 0x73});
coinbase_input.sequence = std::numeric_limits<uint32_t>::max();
coinbase_tx.inputs.push_back(coinbase_input);
transaction_output_type coinbase_output;
coinbase_output.value = coin_price(50);
coinbase_output.output_script.push_operation(
operation{opcode::special,
data_chunk{0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48,
0x27, 0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7,
0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09,
0xa6, 0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde,
0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38,
0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12,
0xde, 0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d,
0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d,
0x5f}});
coinbase_output.output_script.push_operation(
operation{opcode::checksig, data_chunk()});
coinbase_tx.outputs.push_back(coinbase_output);
genesis.transactions.push_back(coinbase_tx);
BITCOIN_ASSERT(genesis.transactions.size() == 1);
BITCOIN_ASSERT(
generate_merkle_root(genesis.transactions) == genesis.merkle);
return genesis;
}
transaction_type proto_to_transaction(
const proto::Transaction& proto_tx)
{
transaction_type result_tx;
result_tx.version = proto_tx.version();
result_tx.locktime = proto_tx.locktime();
for (size_t i = 0; i < proto_tx.inputs_size(); ++i)
{
const proto::Transaction::Input& proto_input = proto_tx.inputs(i);
transaction_input_type tx_input;
const std::string& prev_out_hash = proto_input.previous_output_hash();
std::copy(prev_out_hash.begin(), prev_out_hash.end(),
tx_input.previous_output.hash.begin());
tx_input.previous_output.index = proto_input.previous_output_index();
const data_chunk& raw_script = read_raw_script(proto_input);
if (previous_output_is_null(tx_input.previous_output))
tx_input.input_script = coinbase_script(raw_script);
else
tx_input.input_script = parse_script(raw_script);
tx_input.sequence = proto_input.sequence();
result_tx.inputs.push_back(tx_input);
}
for (size_t i = 0; i < proto_tx.outputs_size(); ++i)
{
const proto::Transaction::Output& proto_output = proto_tx.outputs(i);
transaction_output_type tx_output;
tx_output.value = proto_output.value();
tx_output.output_script = parse_script(read_raw_script(proto_output));
result_tx.outputs.push_back(tx_output);
}
return result_tx;
}
message::transaction read_transaction(
deserializer& deserial, message::transaction& packet)
{
packet.version = deserial.read_4_bytes();
uint64_t tx_in_count = deserial.read_variable_uint();
for (size_t tx_in_i = 0; tx_in_i < tx_in_count; ++tx_in_i)
{
message::transaction_input input;
input.previous_output.hash = deserial.read_hash();
input.previous_output.index = deserial.read_4_bytes();
if (previous_output_is_null(input.previous_output))
input.input_script = coinbase_script(read_raw_script(deserial));
else
input.input_script = read_script(deserial);
input.sequence = deserial.read_4_bytes();
packet.inputs.push_back(input);
}
uint64_t tx_out_count = deserial.read_variable_uint();
for (size_t tx_out_i = 0; tx_out_i < tx_out_count; ++tx_out_i)
{
message::transaction_output output;
output.value = deserial.read_8_bytes();
output.output_script = read_script(deserial);
packet.outputs.push_back(output);
}
packet.locktime = deserial.read_4_bytes();
return packet;
}
