I'm trying to use ZeroMQ integration feature from bitcoind.

According to docs it supports four topic:

  • hashtx
  • hashblock
  • rawblock
  • rawtx

Sadly, they are not very well documented.

So, what is the difference between raw/hash topics?

1 Answer 1


After some investigation, I found out that RAW topics actually include entire body of transaction/block descriptor.

See, Raw Transactions.

Actually, you could explore the transaction descriptor content in JSON format by first converting binary data to HEX-string and then by pasting it to the blockchain.info tool or by using RPC call of bitcoind: decoderawtransaction.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.