My query is: In BTC ADRESS i put any adress that i select from my bitcoin-qt pockets?
Sure!! You’ll mainly use a generated receiving tackle belonging to your btc pockets and use that as your worth throughout the createrawtransaction tackle parameter discipline.
Though you would wish to name the getnewaddress command by way of any means obtainable to you after which you can also make use of it.
.
Assuming that you’ve got already modified listing to the place your bitcoin-cli or bitcoind executable file is situated
CMD method would look one thing like this:
bitcoin-cli getnewaddress which might show newly generated tackle within the cmd terminal window.
bitcoin-cli getnewaddress > newlygenerated_BTC_address.txt which might retailer the output right into a textual content file
To make issues extra dynamic you would wish to write down a batch script to deal with points that your programming language is not capable of deal with. However hopefully you get the thought.
And if i double hash the given hex end result returned to me, with out including another transaction, this may be the merkleroot (with solely the coinbase transaction) and use it to construct the blockheader?
Sure. You’ll insert the double hashed results of the uncooked transaction information because the merkleroot with out swapping it( That will likely be accomplished later when swapping the blockheader for mining). For those who swap twice, you will find yourself with an incorrect coinbase hash.
Aside from that, you would wish to appropriate and insert a number of issues.
Assuming hex response of createrawtransaction produces -> 02000000010000000000000000000000000000000000000000000000000000000000000000ffffff7f00ffffffff0140be402500000000160014f68d712fa6f49cdfaaa1707a9d0234e2aabb3f1100000000
:::
02000000010000000000000000000000000000000000000000000000000000000000000000ffffff7f00ffffffff0140be402500000000160014f68d712fa6f49cdfaaa1707a9d0234e2aabb3f1100000000
____________________________________________________________________
02000000 - Tx model -- 8 bytes
____________________________________________________________________
01 - enter rely -- 2 bytes
____________________________________________________________________
0000000000000000000000000000000000000000000000000000000000000000 - txid -- 64 bytes
____________________________________________________________________
ffffff7f - vout -- 8 bytes
____________________________________________________________________
00 - dimension of scriptsig -- MAX OF 100 bytes
____________________________________________________________________
- scriptsig dimension is lacking - hexadecimal worth
- byte push is lacking - hexadecimal worth
- block top (little endian) is lacking - hexadecimal worth
- arbitrary information(extranonce/message) is lacking - hexadecimal worth
____________________________________________________________________
ffffffff - enter sequence -- 8 bytes
____________________________________________________________________
01- variety of output -- 2 bytes
____________________________________________________________________
40be402500000000 - reward/Output Worth -- 16 bytes
____________________________________________________________________
160014f68d712fa6f49cdfaaa1707a9d0234e2aabb3f11 - scriptPubkey -- 46 bytes (dynamic in size)
____________________________________________________________________
00000000 - locktime
____________________________________________________________________
My C++ answer :
bHeight - Block top as given by **```getblocktemplate```** response
Headers wanted - sstream, string, iostream.
Namespaces used - utilizing std::stringstream, utilizing std::string.
string SwapBlockHeight(string information)
{
string bits; // international return variable
if(information.dimension() == 5)
{
string byte1, byte2, byte3;
byte3 = information.substr(5, 2);
byte2 = information.substr(3, 2);
byte1 = information.substr(1, 2);
bits = byte3 + byte2 + byte1;
}
else if(information.dimension() == 6)
{
string byte1, byte2, byte3;
byte3 = information.substr(4, 2);
byte2 = information.substr(2, 2);
byte1 = information.substr(0, 2);
bits = byte3 + byte2 + byte1;
}
else if(information.dimension() == 8)
{
string byte1, byte2, byte3, byte4;
byte4 = information.substr(6, 2);
byte3 = information.substr(4, 2);
byte2 = information.substr(2, 2);
byte1 = information.substr(0, 2);
bits = byte4 + byte3 + byte2 + byte1;
}
return bits;
}
string GETLittleEndian_BlockHeight(uint32_t bHeight)
{
string reversedDATA;
char i[25];
sprintf(i, "%x", bHeight);
stringstream aa;
aa << i;
aa >> reversedDATA;
// reversedDATA = SwapBlockHeight(reversedDATA);
// Optimized method of above operate name is utilized beneath
// Assuming hex conversion result's = "1d34f589"
string byte;
// Optimized method
for (int i = 0, ok = 0; i < reversedDATA.size()/2; i++)
{
byte += reversedDATA.substr(ok, 2);
ok+=2;
}
reversedDATA = byte; // or you could possibly simply return byte itself
// reversedDATA.size()/2 - as a result of we will likely be accomplished with our objective in half the whole dimension.
return reversedDATA;
}
Bytepush = "03";
Blockheight_littleEndian = GETLittleEndian_BlockHeight(bHeight);
ArbitraryData = "abcdefgh"; // Something inside 100 bytes .. 1 char == 2 bytes
scriptsig_Size = Bytepush.size() + Blockheight_littleEndian.size() + ArbitraryData.size();
// ALL VALUES ARE HEXADECIMAL
LOOKING FOR JSON PARSER/SERIALIZATION??
- Get nlohmann json library
- Embrace in undertaking folder
Somewhat batch script used however nothing too superior.
#embody "json.hpp" // for json serialization parser
#embody <fstream> // for ifstream
#embody <stdlib.h> // for system calls
#embody "home windows.h" // if on home windows
utilizing namespace nlohmann;
utilizing std::ifstream;
inline void RunCommand_With_Output_Without_SYMBOL_Defined(string Command_To_Run, string Output_FileName)
{
string xx_combine = Command_To_Run + " >" + Output_FileName;
char run_command[xx_combine.length()];
strcpy(run_command, xx_combine.c_str());
system(run_command); // execute the command
// std::cout << ifstream(Output_FileName).rdbuf(); // print to console -- FOR DEBUGGING ONLY!!
} // Efficiently compiled on 20/01/2022 10:20PM
void GETBLOCKTEMPLATE()
{
string getblocktemplate_syntax = "cd "C:CustomersYOUR DESKTOP NAMEDesktopZ Code" && name gt.bat";
string filename = "getblocktemplate_Response.json"; // Create file Identify
RunCommand_With_Output_Without_SYMBOL_Defined(getblocktemplate_syntax, filename); // create json file with getblockresponse output
} // Efficiently compiled on 31/01/2022 11:30AM
uint32_t Get_BLOCK_HEIGHT_asInteger()
{
uint32_t f;
ifstream file_input("getblocktemplate_Response.json");
json object = json::parse(file_input); // Parse json information
file_input.shut(); // shut streamer
f = object.at("top");
return f;
}
WHATS INSIDE THE .BAT FILE??
gt.bat
@echo off
cd "C:UsersYOUR DESKTOP NAMEDesktopZ Code" && bitcoin-cli getblocktemplate {"guidelines":["segwit"]}
rem or
cd "C:UsersYOUR DESKTOP NAMEDesktopZ Code" && bitcoin-cli getblocktemplate {"guidelines":["segwit"]}
Rem copy file created to vacation spot folder
copy "C:UsersYOUR DESKTOP NAMEDesktopZ Codegetblocktemplate_Response.json" "C:UsersYOUR DESKTOP NAMEDesktopZ CodeCOINBASE ONLYBITCOIN_Miner"
NOTE!! – Copying of json file from one path to a different is simply wanted in case your gt.bat isn’t situated in your undertaking root folder together with header information. This may trigger errors in a while as a result of in as a lot because the json file was created and holds block template response, it will not be discovered UNLESS you inform the json reader to enter whichever folder the place will probably be generated and get it from there.
It is much more than requested however others may discover the information helpful.
I am going to create a repository on github later.
Ignore what you do not want.
Cheers
