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Trezor WikiGlossaryDevelopmentOP RETURN

OP_RETURN is a script opcode which can be used to write arbitrary data on blockchain and also to mark a transaction output as invalid. Since any outputs with OP_RETURN are provably unspendable, OP_RETURN outputs can be used to burn bitcoins.

How to use OP_RETURN with Trezor


1. Click on Add OP_RETURN in Send transaction tab.


2. Write any text in the Data (text) box.

3. Click send. Your text is now permanently written in blockchain.

NoteThe transaction fee will be higher with longer text.