> ## Documentation Index
> Fetch the complete documentation index at: https://dune-tables-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Bitcoin data

> Bitcoin is the first and most well known cryptocurrency.

<CardGroup cols={1}>
  <Card title="a full guide on all Bitcoin concepts" icon="map" href="https://web3datadegens.substack.com/p/how-to-analyze-bitcoin-data-with" />
</CardGroup>

Bitcoin uses a UTXO transaction model, and has a heavy focus on signatures and scripts for "locking" and "unlocking" tokens. They are also most well known for being tied to a 21 million token supply, and halvenings.

## Data Available

<CardGroup cols={2}>
  <Card title="Blocks" text="Blocks are the base unit that all transactions fit into." href="/data-catalog/bitcoin/blocks" />

  <Card title="Transactions" text="Transactions contain all spent inputs and created outputs from a UTXO transaction." href="/data-catalog/bitcoin/transactions" />

  <Card title="Outputs" text="Just the outputs, unnested." href="/data-catalog/bitcoin/outputs" />

  <Card title="Inputs" text="Just the inputs, unnested." href="/data-catalog/bitcoin/inputs" />
</CardGroup>