# Concept: Block
A IPLD Block is a CID and the binary data value for that CID.
The short version:
+-----+--------------------------------+
| CID | Data |
+-----+--------------------------------+
The long version:
+-----------------------------------+------------------+
| CID | Binary Data |
| +------------------------------+ | |
| |Codec | | |
| +------------------------------+ | |
| |Multihash | | |
| | +----------+---------------+ | | |
| | |Hash Type | Hash Value | | | |
| | +----------+---------------+ | | |
| | | | |
| +------------------------------+ | |
| | |
+-----------------------------------+------------------+