When crunching blockchain data, my script tripped up on transactions without any outputs (vouts). Is this Monero's equivalent of OP_RETURN script, or am I missing something?

After looking at some examples in a blockchain viewer, it appears that the value of the outputs goes to the miner, I will leave the question open for good suggestions as to what is going on there:

Block 761388 Block 782656 Block 844741 Whole block 1006680

  • Can you tell us the txhash or block height of such a transaction?
    – knaccc
    May 4, 2017 at 3:12
  • This is a recent example - xmrchain.net/tx/…
    – Fireice UK
    May 4, 2017 at 8:48
  • Wow, I'm really surprised by that.
    – kenshi84
    May 4, 2017 at 12:21
  • Note that, for all transactions, the sum of the inputs is equal to the fee. Thus, the output is going straight to the coinbase reward, which is a different transaction.
    – dEBRUYNE
    May 4, 2017 at 15:20
  • @dEBRUYNE What's odd is that after following the link to the transaction in block 761388, if the containing block is examined, the no-outputs transaction is not listed. Only a different miner reward transaction is listed. I assume this must be a bug in xmrchain?
    – knaccc
    May 5, 2017 at 8:02

1 Answer 1


Monero has no scripting language. Even though the Cryptonote paper describes a simple lightweight one, the code did not implement it at the time Monero forked.

  • You missed the point of the question - I'm not asking about Monero's scripting capabilities. If you are not familiar with BTC, OP_RETURN script means that the transaction is unspendable, provably so. Although this doesn't appear to happen here.
    – Fireice UK
    May 4, 2017 at 8:55
  • Transactions are neither spendable nor unspendable, that does not make sense. A transaction consumes inputs, and creates outputs. In Monero, it's the same. Inputs are consumed, and outputs (possibly none) are created.
    – user36303
    May 4, 2017 at 20:25

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