Thank you. It looks like my problem is the way that I am decoding the inv message.

Similar question to this one https://bitcointalk.org/index.php?topic=54892.0

I am trying to download the blockchain from the beginning (genesis). I have hardcoded the genesis block in my client program.

I have most of the protocol message are working. I connect using the version and verack messages. I can send a ping and get back the correct pong.

But when I send a getblocks message, I don't get back any inv with a MSG_BLOCK in it. I periodically receive inv messages, but they only contain a few MSG_TX's.

These are the raw bytes that I send as my getblock message.


I also tried it with the genesis block hash reversed, without any success.

I'd like to know too.