> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://support.mixin.one/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How to use Bitcoin Core CLI to approve transactions?

If you haven't created a Mixin Safe with Bitcoin Core, please check this article: [How to use Bitcoin Core to create Mixin Safe?](/en/article/how-to-use-bitcoin-core-to-create-mixin-safe-wudivi/)

### New transaction
1. Choose the Safe which you want to transfer and input the amount and destination address: 

![](https://storage.crisp.chat/users/helpdesk/website/71991a4db339f000/screenshot-2023-07-13-at-15832_i7cn6q.png)

2. Preview and create the transaction

3. Members approval 

![](https://storage.crisp.chat/users/helpdesk/website/71991a4db339f000/screenshot-2023-07-13-at-20323_1trxxz7.png)

### Owner approval

1. Sign with script wallet

![](https://storage.crisp.chat/users/helpdesk/website/71991a4db339f000/screenshot-2023-07-13-at-53908_1sjzfza.png)

Copy unsigned data signed with a script wallet:

```bash
$ ./bitcoin-cli --rpcwallet=mixin-safe walletprocesspsbt cHNidP8BAKQCAAAAASTY9uNSG688NchO7NjP2WGb/FAhI8zvvLbe6JgKRW/XAAAAAAD/////AxAnAAAAAAAAIgAgDzOHef9wqSM7pHlAuRNu9/b1x1JLSbsBrWa6rZ2IZNxtaAEAAAAAACIAIA8zh3n/cKkjO6R5QLkTbvf29cdSS0m7Aa1muq2diGTcAAAAAAAAAAASahDLcBbbY1VD+rUrnZAmgUguAAAAAAABASt9jwEAAAAAACIAIA8zh3n/cKkjO6R5QLkTbvf29cdSS0m7Aa1muq2diGTcAQMEgQAAAAEFeCEDsI7quYJvELaFaf+a8m6jUGdenVz5J0wZkM/l188rGGysfCECYTAMsjPwksbC94cTliS4jqTHdOd5s6JXs2ovzxhqCaesk3yCkmMhAm436m4emgGHU+Mok4cwbY1gU1GANJcCHBp89+bAqNq2rQKwAbKSaJNShwAAAAA= true "ALL|ANYONECANPAY"
{
  "psbt": "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",
  "complete": false
}
```

|| Please do not forget to add the parameter `true "ALL|ANYONECANPAY"` at the end.

2. Sign with Key wallet

Sign the psbt data returned in step 1 with the key wallet:

```bash
./bitcoin-cli --rpcwallet=mixin-safe-holder walletprocesspsbt 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  true "ALL|ANYONECANPAY"
{
  "psbt": "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",
  "complete": false
}
```

|| Please do not forget to add the parameter `true "ALL|ANYONECANPAY"` at the end.

3. Copy and paste

Copy the psbt data returned by the step 2, paste it into the input box, and click the Approve button to complete the operation.


### Owner reject the transaction

1. Sign with key wallet

![](https://storage.crisp.chat/users/helpdesk/website/71991a4db339f000/screenshot-2023-07-13-at-54151_12jqd12.png)

Copy unsigned data signed with a key wallet:


```bash
./bitcoin-cli --rpcwallet=mixin-safe-holder signmessage 1Gz4GoSjNV8MxLFt8bE8JTfqJp6b2bXhvZ REVOKE:7bcc9a68-51a0-4e66-95f0-eea16417d802:3af37ce1c54dc1fd03344fcb805f55868fc6ea394dbcc8ab383ec47f65bc5777 
IPpiNMq9aqGuMaDOSs9GdWk+SJIkpSRAY4FY7Ub01WVDfGRjqte89Xmiokyk45Q8cgEmY7b7w+iCrUPIgAQG8Hc=
```

|| Please note that the parameter after signmessage is key wallet address. If you forget it, you can query it by label: `./bitcoin-cli --rpcwallet=mixin-safe-holder getaddressesbylabel safe` .

2. Copy paste
Copy the data returned by step 1, paste it into the input box, and then click the Reject button to complete the operation.


### FAQ

* error: timeout on transient error: Could not connect to the server 127.0.0.1:8332 
The possible reason is that you rebooted your computer without automatically running the bitcoin client, run `./bitcoind -daemon` and wait 15 seconds for the index to load before running it again.

* error code: -28 error message: Loading block index…
Just finished executing `./bitcoind -daemon` needs to wait for the Bitcoin client to load the block index.

* error code: -28 error message: Verifying blocks…
Just finished executing `./bitcoind -daemon` needs to wait for the Bitcoin client to verify the block data.

* error code: -18 error message: Requested wallet does not exist or is not loaded
This is probably because the Bitcoin client does not load wallets by default when it starts, so first run `./bitcoin-cli listwallets` to see which wallets are loaded, make sure they are not in the list, and then try `./bitcoin-cli loadwallet mixin-safe-holder` to manually load the Safe's key wallet or script wallet.