GITBOOK-32: Adding OP_RETURN

trezor · Jun 6, 2023 · bfc6b37 · bfc6b37
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diff --git a/SUMMARY.md b/SUMMARY.md
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     * [URI handlers](en/3\_send-and-receive/transactions-in-depth/uri-handlers.md)
     * [Electrum compatible signatures](en/3\_send-and-receive/transactions-in-depth/electrum-compatible-signatures.md)
     * [Send RAW](en/3\_send-and-receive/transactions-in-depth/send-raw.md)
+    * [OP\_Return](en/3\_send-and-receive/transactions-in-depth/op\_return.md)
 * [Buy, sell & exchange](en/4\_buy-sell-and-exchange/README.md)
   * [fiat to cryptocurrency](en/4\_buy-sell-and-exchange/fiat-to-cryptocurrency/README.md)
     * [Buy](en/4\_buy-sell-and-exchange/fiat-to-cryptocurrency/buy.md)

diff --git a/en/3_send-and-receive/transactions-in-depth/op_return.md b/en/3_send-and-receive/transactions-in-depth/op_return.md
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+# OP\_Return
+
+OP\_Return is a bitcoin feature that provides a memo field for transactions. Usage of OP\_Return is limited to prevent network congestion.
+
+> ⚠️ OP\_Return transactions make any bitcoin sent with the transaction unspendable. Do not send more than the bare minimum plus a network fee when creating an OP\_Return transaction.
+
+Messages stored on the blockchain will be viewable as long as bitcoin exists and can not be censored.
+
+#### How to send a message using OP\_Return
+
+1. Create a transaction by entering a recipient address, amount and fee.
+2. Select **Add OP Return** from the ellipsis drop-down menu.
+3. Enter your memo into the left text box. On the right, your message will be shown in hexadecimal.
+4. Click **Review & Send.** Confirm all details on your Trezor and finish the transaction.
+5. Once confirmed, the hexadecimal data can be retrieved and decoded from the bitcoin blockchain.
+
+> 💡 Learn more about [OP\_Return](https://trezor.io/learn/a/use-op\_return-in-trezor-suite) on the Trezor knowledge base&#x20;