> ## Documentation Index
> Fetch the complete documentation index at: https://docs.int3face.zone/llms.txt
> Use this file to discover all available pages before exploring further.
# BTC Demo
* Demos
* BTC Demo
On this page
This is the demo for the inbound and outbound transfer flow in the Int3face for BTC tokens.
**Requirements**
1. Int3face node
2. Int3face observer (configured for the BTC regtest)
3. [BTC regtest node](/docs/int3face/build-and-run/btc_deploy)
We have everything deployed and ready in the Int3face testnet. Request Int3face team to get access to the testnet environment.
Current Bitcoin vault address: `bcrt1qjrcwv9848uvvcdzvyplmgms6dr62zp6qz5f5ch`
## Inbound Transfer[](#inbound-transfer "Direct link to Inbound Transfer")
We will use our own BTC validator funds.
1. We need an int3 address to send funds to
We can generate new address by `int3faced keys add "$your_key_name"`. 
We will use the address `int31nx72wqe9js9n0tvk9c2w4zwgwv6kecp0n4zllt`
2. Lets verify that this address doesn't have DOGE tokens in the Int3face
```
int3faced q bank balances int31nx72wqe9js9n0tvk9c2w4zwgwv6kecp0n4zllt
```
3. Select an UTXO to spend
```
bitcoin-cli listunspent
```
If you don't see any UTXO available, mine a block to receive the rewards `bitcoin-cli -generate 1`, and run `listunspent` command again.
4. Build raw transaction from the UTXO you selected
**Vins**
* Take the `txid` and `vout` from the UTXO you're going to spend
**Vouts**
* Add the DOGE vault address and the amount to send
* Add the change address to get remaining tokens back (to get address of your current node run `bitcoin-cli listreceivedbyaddress 0 true`)
* Leave a small amount of tokens to pay the fee (0.1 should be enough)
* Add `data` entry with the hex encoded recipient address
* Encode `int31nx72wqe9js9n0tvk9c2w4zwgwv6kecp0n4zllt` at the (online converter)\[[https://www.rapidtables.com/convert/number/ascii-to-hex.html](https://www.rapidtables.com/convert/number/ascii-to-hex.html)]
```sh theme={null}
vins='[
{
"txid": "5023f0be5c236ac4c1be6a6c7bcc5dcc2ece77f5ccf1cb52cd590e5c4c1407d9",
"vout": 0
}
]'
vouts='{
"bcrt1qjrcwv9848uvvcdzvyplmgms6dr62zp6qz5f5ch": 10.0,
"bcrt1qkx2l45vnq5d4883n0ny9fhdcqqz79cqsva44q6": 39.99,
"data": "696E7433316E783732777165396A73396E3074766B39633277347A77677776366B656370306E347A6C6C74"
}'
bitcoin-cli createrawtransaction "$vins" "$vouts"
```
5. We can verify that the transaction is correct
```
bitcoin-tx -regtest -json "$raw_tx"
```
6. Sign the transaction
```
bitcoin-cli signrawtransactionwithwallet $raw_tx
```
7. Broadcast signed transaction to the BTC
```
bitcoin-cli sendrawtransaction $signed_tx
```
8. Generate a block to include our transaction in the chain
```
bitcoin-cli -generate 1
```
Now the transaction should be observed by the Observer and sent to the Int3face chain.
9. Check your balance on the Int3face chain.
```
int3faced q bank balances int31nx72wqe9js9n0tvk9c2w4zwgwv6kecp0n4zllt
```
Now, we can see BTC tokens in our wallet.
## Outbound Transfer[](#outbound-transfer "Direct link to Outbound Transfer")
Lets send some of the tokens back from Int3face to BTC.
1. Generate new BTC address
```sh theme={null}
bitcoin-cli getnewaddress
bcrt1qu80e2kt8ery9589gec9em8qhzkvxqkdy8ecr6x
```
2. Request an outbound transfer from the bridge module
```
int3faced tx bridge outbound-transfer bcrt1qu80e2kt8ery9589gec9em8qhzkvxqkdy8ecr6x bitcoin-btc 100000000 --from doge_test
```
3. We can check our balance again to see that DOGE tokens in Int3face were burt
```
int3faced q bank balances int31nx72wqe9js9n0tvk9c2w4zwgwv6kecp0n4zllt
```
4. Generate a block in BTC to include transaction from the vault
```
bitcoin-cli -generate 1
```
5. Check DOGE balance of the address we created before
```
bitcoin-cli listunspent 1 9999999 '["bcrt1qu80e2kt8ery9589gec9em8qhzkvxqkdy8ecr6x"]'
```
Now, we can see BTC tokens in our wallet.