I’m working on a “light client” for ION (Identity Overlay Network), and I’d like to see if there is a better method to grab the OP_RETURN data that it needs in order to build state.
Currently I am iterating through every block starting at a specific height and then iterating through each transaction and each transaction output in order to find the OP_RETURN signature that I am looking for.
Is there a better way to accomplish this by requesting all OP_RETURN data only? The bandwidth requirements for downloading all of the block data is a bottleneck for what I’d like to do, but I don’t think what I’m looking for is possible with only the Bitcoin Wire protocol.
