# Ethereum Beacon Chain Schema
This document describes the schema for Ethereum Beacon Chain data sources, including blocks, attestations, validators, and other consensus layer data.
Auto-generated file. See `schema_to_markdown` in `crates/core/common/src/catalog/mod.rs`.
## blocks
````
+-------------------------+---------------------+-------------+
| column_name | data_type | is_nullable |
+-------------------------+---------------------+-------------+
| _block_num | UInt64 | NO |
| block_num | UInt64 | NO |
| version | Utf8 | YES |
| signature | FixedSizeBinary(96) | YES |
| proposer_index | UInt64 | YES |
| parent_root | FixedSizeBinary(32) | YES |
| state_root | FixedSizeBinary(32) | YES |
| randao_reveal | FixedSizeBinary(96) | YES |
| eth1_data_deposit_root | FixedSizeBinary(32) | YES |
| eth1_data_deposit_count | UInt64 | YES |
| eth1_data_block_hash | FixedSizeBinary(32) | YES |
| graffiti | FixedSizeBinary(32) | YES |
+-------------------------+---------------------+-------------+
````
