> ## Documentation Index
> Fetch the complete documentation index at: https://dune-pro-1110-add-delete-endpoints-python-js-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# polkadot.blocks

> Description of Substrate blocks table on Dune.

export const TableSample = ({tableName, tableSchema}) => <div>
    <iframe src={`https://dune.com/embeds/3419983/5785629?table_schema_t6c1ea=${tableSchema}&table_name_t6c1ea=${tableName}`} style={{
  width: '100%',
  height: '500px',
  border: 'none',
  marginTop: '10px'
}} />
  </div>;

export const ColumnDescriptions = ({tableName, tableSchema}) => <div>
    <iframe src={`https://dune.com/embeds/3424601/5785601?table_name_t6c1ea=${tableName}&table_schema_t6c1ea=${tableSchema}`} style={{
  width: "100%",
  height: "500px",
  border: "none",
  marginTop: "10px"
}} />
    <Info> Datatypes on Snowflake datashare are different in some cases, read more <a href="/datashare/datashare#datatypes">here</a>.  </Info>
  </div>;

## Table description

The blocks table stores basic information about Substrate blocks, with one record per block, including the block hash and statistics on the number of extrinsics, events, and transfers contained in each block.

## Column Descriptions

<ColumnDescriptions tableSchema="polkadot" tableName="blocks" />

## Table Sample

<TableSample tableSchema="polkadot" tableName="blocks" />