# Bitcoin transaction

## Definition

A Bitcoin transaction is a data structure that spends one or more existing transaction outputs and creates new outputs according to Bitcoin's consensus and script rules.

## What it means in practice

Inputs reference earlier UTXOs, outputs define new spend conditions, and signatures normally prove that the spender is authorized to satisfy the relevant script conditions.

## How this concept appears in Terenval Wallet

Terenval Wallet constructs and signs Bitcoin transactions for the user's Bitcoin account and then broadcasts them to the Bitcoin network.

**Important:** Verify the destination, amount and fee before signing because a confirmed Bitcoin transaction is generally not reversible.

**[Install Terenval Wallet](https://wallet.terenval.com/?lang=en)**

## Related terms

- [UTXO](https://wallet.terenval.com/glossary/utxo/)
- [Bitcoin transaction input](https://wallet.terenval.com/glossary/bitcoin-transaction-input/)
- [Bitcoin transaction output](https://wallet.terenval.com/glossary/bitcoin-transaction-output/)
- [Bitcoin mempool](https://wallet.terenval.com/glossary/bitcoin-mempool/)
- [Transaction confirmation](https://wallet.terenval.com/glossary/transaction-confirmation/)
- [Transaction signing](https://wallet.terenval.com/glossary/signing/)

## Related Terenval Answers

- [What Is a Crypto Wallet and What Does It Actually Store?](https://wallet.terenval.com/answers/what-is-a-crypto-wallet-and-what-does-it-store/)
- [How to Send Crypto Safely Between Wallets](https://wallet.terenval.com/answers/how-to-send-crypto-safely-between-wallets/)
- [Can the Same Seed Phrase Restore Bitcoin and Ethereum Accounts?](https://wallet.terenval.com/answers/can-same-seed-restore-bitcoin-and-ethereum/)

## Sources and review

- [Bitcoin Developer Guide](https://developer.bitcoin.org/devguide/)
- [Bitcoin Improvement Proposals](https://github.com/bitcoin/bips)
- [Terenval supported networks](https://wallet.terenval.com/info/supported-networks/)

Published by Terenval. Last reviewed: 2026-10-02. Terenval product statements are first-party information.

Official page: https://wallet.terenval.com/glossary/bitcoin-transaction/