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Title: How do I find the information of the Bitcoin protocol version Post by: myfy on April 26, 2024, 01:44:08 PM Hello
I want to broadcast Bitcoin transactions using python's socket library.Now I can sign a transaction. But when sock is used to link other nodes, it is not known what information should be transmitted.The node I am linking to is protocol version 70016.I tried to find information on bitcoin.org. This is the site I was looking for: https://developer.bitcoin.org/reference/p2p_networking.html#protocol-versions But it doesn't show how protocol 70016 works.I want to know which website I should visit for the 70016 version of the Bitcoin protocol. Title: Re: How do I find the information of the Bitcoin protocol version Post by: Cricktor on April 27, 2024, 09:44:02 PM Sorry, if my post is sort of off-topic when you ask such a specific question. I'm no Python coder but there should be some already existing libraries and modules to do that. Do you have specific needs to use the socket lib?
A non-extensive search gave me some hits that look promissing (I had a quick look into each search result, but not more than that): https://medium.com/coinmonks/how-to-make-a-bitcoin-transaction-with-python-450d7d3db864 (https://medium.com/coinmonks/how-to-make-a-bitcoin-transaction-with-python-450d7d3db864) --- seems incomplete https://github.com/slush0/sendtx (https://github.com/slush0/sendtx) https://bitcoinlib.readthedocs.io/en/latest/ (https://bitcoinlib.readthedocs.io/en/latest/) --- you need a Bitcoin node, preferably local A from-scratch tour of Bitcoin in Python (http://karpathy.github.io/2021/06/21/blockchain/) --- maybe worth looking into how tx are actually send out ... There's certainly more to find. I don't see this as my duty, improve your searching skills. Have a look at this thread as another find, I'm pretty confident there're more sources in this forum, too: Make a bitcoin transaction with python? (https://bitcointalk.org/index.php?topic=5396894.msg60021668#msg60021668) Title: Re: How do I find the information of the Bitcoin protocol version Post by: pooya87 on April 28, 2024, 04:51:55 AM I want to broadcast Bitcoin transactions using python's socket library. If that's all you want to do, you need not concern yourself with the protocol version. Majority of these versions (https://github.com/bitcoin/bitcoin/blob/master/src/node/protocol_version.h) are defining stuff that concerns a full node not what you want to do.The process you're looking for is like it's always been: 1. Open socket and connect to the peer using its IP address and port 2. Perform handshare (Send version, receive version and verack, send verack) 3. Push your tx in a tx message The three message types and their structures on explained in the link you shared. https://developer.bitcoin.org/reference/p2p_networking.html#version https://developer.bitcoin.org/reference/p2p_networking.html#verack https://developer.bitcoin.org/reference/p2p_networking.html#tx FWIW protocol version 70016 introduced wtxid-based relay and nodes that have that version support this feature. |