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. | 159292973 |
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 | 123292963 |
timestamp | The time when the slot was included on the blockchain. blocks < 39824214 have no block timestamp | |
hash | Unique identifier for that slot. (base58) | 5X6zcnNw6HSAn4X8GaMnzBp8JnWPcNHoAThFwFN1oeph |
parent_slot | Slot number of the non-empty slot preceding this slot | 12713406 |
previous_block_hash | Unique identifier of the non-empty slot preceding this slot | GLWm6JSTnQAUkfYsyfJbafc8KxF5LKwDdoVEVGSVQ44n |
transaction_count | Number of transactions in the block |
|
successful_transaction_count | Number of successful transactions |
|
failed_transaction_count | Number of failed transactions |
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