Blocks
Blocks are the building blocks of blockchains and rollups. A block contains transactions which contains instructions which will alter the state of the solana blockchain incrementally. Transactions within a block can only be executed one after the other, not in parallel. Instructions within a transaction can only be executed one after the other, not in parallel.
Learn more in the official Solana documentation here.
Table Columns
| Column Name | Description | Example |
|---|---|---|
| slot | The time of the slot and also block. Within the time window of a slot a block may or may not be proposed and voted upon. Only non-empty slots are indexed. | 276304227 |
| height | The number of blocks beneath the current block. The first block after the genesis block has height one. height < slot as some each slot as at most 1 block. blocks < 81032053 have no block height | 255661589 |
| timestamp | The time when the slot was included on the blockchain. blocks < 39824214 have no block timestamp | 2024-07-08 02:16:54.000 |
| hash | Unique identifier for that slot. (base58) | 36KR3aiVEZYSJDb8wgWBWpXbYykuz3BJagFRMhFijKxA |
| parent_slot | Slot number of the non-empty slot preceding this slot | 276304226 |
| previous_block_hash | Unique identifier of the non-empty slot preceding this slot | 2ymHtgWXKxVf5BVVdt34onGrkUm7oDCHTMBBzkJt1rsV |
| transaction_count | Number of transactions in the block | 875 |
| nonvoting_transaction_count | Number of nonvoting transactions in the block | 441 |
| reward_count | Number of rewards in the block | 1 |