I do know that on this discussion board a variety of questions on this matter, I’ve checked most of those, however cannot discover the answer for my activity. I’m creating my very own algorithm for solo mining bitcoin on Python. I wrote all mandatory strategies for that, together with hashing the Merkle root, calculating the block header and so on. However now, I’m caught for just a few weeks on the coinbase transaction. I’ve studied the coinbase transaction web page on LearnMeABitcoin.com and tried to implement all logic for it, however cannot absolutely perceive how you can make one. I wish to embrace new guidelines (BIP34 – block header, BIP141 – SegWit tx) on this algorithm, however my information about hashing this isn’t sufficient. 🙁
Can somebody present possibly extra supplies, some samples of code, or describe particulars about producing a coinbase transaction? Any data might be very useful, hope in your assist.
Additionally, I’m coaching on Bitcoin core in regtest mode, and after I use "generatetoaddress" technique (for generate blocks) this one would not gen coinbase tx with BIP34 & BIP141 necessities, possibly I would like set extra config for this one? I discovered somebody say about blockversion arg, is it true?
Thanks all ^^
P.S. If i miss some particulars about my activity, fell free to ask and I present all information which I’ve, of pattern of code which I’ve (it isn’t working)
UPDATE
I’ve greate information, I discover the answer and full this) thanks all for yout assist, some later I share my code for gen coinbaseTx in python.
However left just one query, i take advantage of object for generate tx like on display screen, and it have some distinction with coinbase tx from generataing by Bitcoin Core utilizing generatetoaddress solely in a single place, filed n in first output, and it at all times "00000000", like 0 in little-endian with 4 bytes I hope. Can somebody clarify what it’s? I exploit p2wpkh script for hashing tackle, possibly this one is sort for this? After I add this worth all labored high quality, and I efficiently gen CoinbaseTx, after construct block header and full block and broadcast it to node. However only for absolutely understanding my code, wanna to know what this "00000000" imply) Title "n" for area was by me, simply non permanent title.
