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

# cardano.block

> Description of the block table on Dune

export const TableSample = ({tableName, tableSchema}) => <>
    <div className="hidden dark:block">
      <iframe src={`https://dune.com/embeds/3419983/5785629?table_schema_t6f0df=${tableSchema}&table_name_t6f0df=${tableName}&darkMode=true`} style={{
  width: '100%',
  height: '500px',
  border: 'none',
  marginTop: '10px'
}} />
    </div>
    <div className="dark:hidden">
      <iframe src={`https://dune.com/embeds/3419983/5785629?table_schema_t6f0df=${tableSchema}&table_name_t6f0df=${tableName}`} style={{
  width: '100%',
  height: '500px',
  border: 'none',
  marginTop: '10px'
}} />
    </div>
  </>;

## Table Description

Contains block-level data for the Cardano blockchain. Each row represents a single block and includes information about the epoch, slot, transaction count, total output value, fees collected, and protocol version.

## Column Descriptions

| **Column**                  | **Description**                                                                      | **Type**      |
| --------------------------- | ------------------------------------------------------------------------------------ | ------------- |
| **block\_hash**             | The hash uniquely identifying the block.                                             | varchar       |
| **block\_number**           | The sequential number of the block in the chain.                                     | bigint        |
| **block\_time**             | The timestamp when the block was produced.                                           | timestamp     |
| **epoch**                   | The epoch number in which the block was produced.                                    | integer       |
| **slot**                    | The absolute slot number of the block.                                               | bigint        |
| **epoch\_slot**             | The slot number relative to the start of the epoch.                                  | bigint        |
| **era**                     | The Cardano era during which the block was produced (e.g., Shelley, Alonzo, Conway). | integer       |
| **tx\_count**               | The number of transactions included in the block.                                    | integer       |
| **total\_output\_lovelace** | The total output value of all transactions in the block, in lovelace.                | decimal(38,0) |
| **total\_fees\_lovelace**   | The total transaction fees collected in the block, in lovelace.                      | bigint        |
| **protocol\_version**       | The protocol version active when the block was produced.                             | varchar       |
| **prev\_block\_hash**       | The hash of the preceding block.                                                     | varchar       |
| **pool\_hash**              | The hash of the stake pool that produced the block.                                  | varchar       |
| **\_updated\_at**           | The time when this record was last updated.                                          | timestamp     |
| **\_ingested\_at**          | The time when this record was ingested into Dune.                                    | timestamp     |

## Table Sample

<TableSample tableSchema="cardano" tableName="block" />