I am using the below code to generate genesis block. I got the Coinbase, PubkeyScript, Merkle Hash, Byteswapped. However, it is stuck at Generating block... . The Hashes/s and Nonce keep changing. I thought it will just take a few mins to generate the first block. But, generally, how much time does it take to generate the first block? Am I missing something? Should I have changed something in code to generate the first block faster?
Waiting for your reply.
Regards,
Harish
Thanks, it works great for me. I have made small changes to improve it, see https://github.com/liveblockchain/genesisgen
1. Gets invalid result when the timestamp string is longer than 76 bytes, as it has to use `OP_PUSHDATA1(0x4c)` as prefix of the data.
2. Add command line arguments for nonce and unixtime for quick poc test.
1. Gets invalid result when the timestamp string is longer than 76 bytes, as it has to use `OP_PUSHDATA1(0x4c)` as prefix of the data.
Code:
if (timestamp_len > 76) {
transaction->scriptSig[scriptSig_pos++] = 0x4c;
}
2. Add command line arguments for nonce and unixtime for quick poc test.
Code:
Usage: ./genesis [options] <pubkey> "<timestamp>" <nBits> <startNonce> <unixtime>
$ ./genesis 04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks" 486604799 2083236893 1231006505
nBits: 0x1d00ffff
startNonce: 2083236893
unixtime: 1231006505
Coinbase: 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73
PubkeyScript: 4104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac
Merkle Hash: 3ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4a
Byteswapped: 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
Generating block...
Block found!
Hash: 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
Nonce: 2083236893
Unix time: 1231006505